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2001.

If 15 books are arranged in a row then the number of ways of choosing 4 books such that all the four books are not together is

Answer»

If 15 books are arranged in a row then the number of ways of choosing 4 books such that all the four books are not together is

2002.

Which of the following is/are correct? 1. The constitution does not fix the number of members of UPSC. 2. One-half of the members of the UPSC should be person who has field office under central or state government atleast for five years. 3. The salaries and allowances of members of UPSC is determined by the parliament. 4. Tenure of chairman and members of UPSC is Five years or until they attain the age of 60 years. 5. The entire expenses of UPSC are changed on the consolidate Fund of India. Codes:

Answer»

Which of the following is/are correct?

1. The constitution does not fix the number of members of UPSC.

2. One-half of the members of the UPSC should be person who has field office under central or state government atleast for five years.

3. The salaries and allowances of members of UPSC is determined by the parliament.

4. Tenure of chairman and members of UPSC is Five years or until they attain the age of 60 years.

5. The entire expenses of UPSC are changed on the consolidate Fund of India.

Codes:


2003.

If in a garden 540 rose plants and 630 Lily plants are to planted in columns such that the numbers of plants in each columns is same. What is the minimum number of columns in which they are planted

Answer» If in a garden 540 rose plants and 630 Lily plants are to planted in columns such that the numbers of plants in each columns is same. What is the minimum number of columns in which they are planted
2004.

Fill In The Blanks ABCD is such a quadrilateral that A is the centre of the circle passing through B, C and D. If ∠CBD + ∠CDB = k ∠BAD, then k = _______.

Answer» Fill In The Blanks



ABCD is such a quadrilateral that A is the centre of the circle passing through B, C and D. If ∠CBD + ∠CDB = k ∠BAD, then k = _______.
2005.

The shortest distance of the point (12,1) from the curve y=|x−1|+|x+1| is

Answer»

The shortest distance of the point (12,1) from the curve y=|x1|+|x+1| is


2006.

Question 20The first term of an AP is –5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.

Answer» Question 20

The first term of an AP is –5 and the last term is 45. If the sum of the terms of the AP is 120, then find the number of terms and the common difference.
2007.

A 50-digit number has all 7's. Find the remainder when the number is divided by 74.___

Answer» A 50-digit number has all 7's. Find the remainder when the number is divided by 74.___
2008.

If all three sides of a parallelogram touch a circle, show that the parallelogram is a rhombus.

Answer» If all three sides of a parallelogram touch a circle, show that the parallelogram is a rhombus.
2009.

How π2 and 3π2 are points of discontinuity in this question? Is ex ever = 0?

Answer» How π2 and 3π2 are points of discontinuity in this question? Is ex ever = 0?
2010.

Let f(x) be a quadratic polynomial such that f(−1)+f(2)=0. If one of the roots of f(x)=0 is 3, then its other root lies in:

Answer»

Let f(x) be a quadratic polynomial such that f(1)+f(2)=0. If one of the roots of f(x)=0 is 3, then its other root lies in:

2011.

Ahmed and Sahil set out together on bicycle traveling at 15 and 12 kilometers per hour, respectively. After 40 minutes, Ahmed stops to fix a flat tire. If it takes Ahmed one hour to fix the flat tire and Sahil continues to ride during this time, how many hours will it take Ahmed to catch up to Sahil assuming he resumes his ride at 15 kilometers per hour? (consider Ahmed's deceleration/acceleration before/after the flat to be negligible)

Answer»

Ahmed and Sahil set out together on bicycle traveling at 15 and 12 kilometers per hour, respectively. After 40 minutes, Ahmed stops to fix a flat tire. If it takes Ahmed one hour to fix the flat tire and Sahil continues to ride during this time, how many hours will it take Ahmed to catch up to Sahil assuming he resumes his ride at 15 kilometers per hour? (consider Ahmed's deceleration/acceleration before/after the flat to be negligible)


2012.

Divide 2x3+x2–3x–3 by 2x–1 and verify your answer.

Answer» Divide 2x3+x23x3 by 2x1 and verify your answer.
2013.

If ∣∣∣asin2θ+bsinθ cosθ+c cos2θ−12(a+c)∣∣∣≤12k, then k2 is equal to

Answer»

If asin2θ+bsinθ cosθ+c cos2θ12(a+c)12k, then k2 is equal to

2014.

An unbiased die is tossed twice. Find the probability of getting a 1, 2, 3 or 4 on the first toss and a 4, 5 or 6 on the second toss.

Answer»

An unbiased die is tossed twice. Find the probability of getting a 1, 2, 3 or 4 on the first toss and a 4, 5 or 6 on the second toss.

2015.

What is the remainder when 120212 is divided by 1000?

Answer»

What is the remainder when 120212 is divided by 1000?


2016.

Consider the map given below indicating four places frequently figuring in the news : Which one of them is Chechenya ? Choose the correct answer.

Answer»

Consider the map given below indicating four places frequently figuring in the news : Which one of them is Chechenya ? Choose the correct answer.


2017.

Question 1The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder. Assume π=227.

Answer» Question 1

The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder. Assume π=227.
2018.

A train met with an accident 80 km away from old Delhi railway station. It travels at 56th of the usual speed and reaches the Kanpur central 1 hour 12 min late. Had the accident taken place 120 km further. It would have been only 1 hour late. What is the distance between Old Delhi Railway station and Kanpur Central?

Answer»

A train met with an accident 80 km away from old Delhi railway station. It travels at 56th of the usual speed and reaches the Kanpur central 1 hour 12 min late. Had the accident taken place 120 km further. It would have been only 1 hour late. What is the distance between Old Delhi Railway station and Kanpur Central?

2019.

Find the smallest.no which leaves reminder 8 and 12 when divided by 28 and 32 respectively.

Answer» Find the smallest.no which leaves reminder 8 and 12 when divided by 28 and 32 respectively.
2020.

Q45)Which of the following pairs has similar relationship as Run: Race?

Answer»

Q45)Which of the following pairs has similar relationship as Run: Race?


2021.

From 2008 onwards the no of recruitment of trainees increases by 10% at Jacobsons and 20% at Robinsons. In which year would the no of these new trainees cross 10,000? ___

Answer» From 2008 onwards the no of recruitment of trainees increases by 10% at Jacobsons and 20% at Robinsons. In which year would the no of these new trainees cross 10,000?
___
2022.

A four-digit number is to be formed with digits 0, 1, 2, 3, 4 and 5 (without repetition). What is the probability that this number will leave a remainder 1, being divided by 9?

Answer» A four-digit number is to be formed with digits 0, 1, 2, 3, 4 and 5 (without repetition). What is the probability that this number will leave a remainder 1, being divided by 9?
2023.

Find the sum of all integers between 100 and 550 which are not divisible by 9.

Answer» Find the sum of all integers between 100 and 550 which are not divisible by 9.
2024.

Q. Find the angle between the minute hand and the hour hand of a clock when the time is 4:40 pm. Q. एक घड़ी के मिनट वाली सुई और घंटे वाली सुई के मध्य का कोण ज्ञात कीजिए जब घड़ी में शाम के 4:40 बज रहे हैं।

Answer»

Q. Find the angle between the minute hand and the hour hand of a clock when the time is 4:40 pm.

Q. एक घड़ी के मिनट वाली सुई और घंटे वाली सुई के मध्य का कोण ज्ञात कीजिए जब घड़ी में शाम के 4:40 बज रहे हैं।

2025.

If the price of a book is reduced by Rs 5, a person can buy 5 more books for the same amount, i.e.. Rs 300. Find the original list price of the book.

Answer»

If the price of a book is reduced by Rs 5, a person can buy 5 more books for the same amount, i.e.. Rs 300. Find the original list price of the book.


2026.

Length of a rectangular garden is 10m and it's breadth is 8m. If a road of uniform width of xm is surrounded outside the park, find the area of the road in term of x

Answer» Length of a rectangular garden is 10m and it's breadth is 8m. If a road of uniform width of xm is surrounded outside the park, find the area of the road in term of x
2027.

Ritu can row downstream 20 km in 2 hours and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.

Answer» Ritu can row downstream 20 km in 2 hours and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.
2028.

How much milk should be added to 800 dl of a 15% milk solution to make the strength 32%?

Answer»

How much milk should be added to 800 dl of a 15% milk solution to make the strength 32%?


2029.

Let X be the set of first 100 natural numbers. Sets S1 and S2 are subsets of X such that each of them has more than zero elements and no common element. If the maximum number of elements in S1 = x1, in S2 = y1 and minimum no. of elements in S1 = x2, in S2 = y2 then: If |x1 - y1| and |x2 - y2| are at their minimum possible values then which of the following is true?

Answer»

Let X be the set of first 100 natural numbers. Sets S1 and S2 are subsets of X such that each of them has more than zero elements and no common element. If the maximum number of elements in S1 = x1, in S2 = y1 and minimum no. of elements in S1 = x2, in S2 = y2 then:
If |x1 - y1| and |x2 - y2| are at their minimum possible values then which of the following is true?

2030.

What is arithmetic progression ?

Answer» What is arithmetic progression ?
2031.

The diagonal of a trapezium shaped field is 25m and the perpendiculars dropped on it from the remaining opposite vertices are 8m and 12m. Find the area of the field(in m2).

Answer»

The diagonal of a trapezium shaped field is 25m and the perpendiculars dropped on it from the remaining opposite vertices are 8m and 12m. Find the area of the field(in m2).



2032.

If AP sum is n2(3n+13) find 30th term?

Answer» If AP sum is n2(3n+13) find 30th term?
2033.

A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB+CD=AD+BC

Answer» A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB+CD=AD+BC
2034.

Find the remainder when 7^103 is divided by 24.

Answer» Find the remainder when 7^103 is divided by 24.
2035.

What per cent of the total number of girls in the college know Bengali?

Answer» What per cent of the total number of girls in the college know Bengali?
2036.

Which of the following can be classified as the smaller angle between the hour hand and minute hand at 8 o'clock?

Answer»

Which of the following can be classified as the smaller angle between the hour hand and minute hand at 8 o'clock?



2037.

If a half sphere's volume and total surface area both are equal, then what will be the value of the radius of the half sphere?

Answer» If a half sphere's volume and total surface area both are equal, then what will be the value of the radius of the half sphere?
2038.

Prove that the least perimeter of an isosceles triangle in which a circle of radius r can be inscribed is 63r.

Answer» Prove that the least perimeter of an isosceles triangle in which a circle of radius r can be inscribed is 63r.
2039.

In how many different ways, the schedule of all exams are possible?

Answer»

In how many different ways, the schedule of all exams are possible?

2040.

Fill In The Blanks In a sample study of 642 people, it was found that 514 people have a high school certificate. If a person is selected at random, the probability, that the person has a high school certificate is _______.

Answer» Fill In The Blanks



In a sample study of 642 people, it was found that 514 people have a high school certificate. If a person is selected at random, the probability, that the person has a high school certificate is _______.
2041.

A box contains 9 red toys, 9 green toys and 7 blue toys. Each ball is of a different size. The probability that the red ball being selected is the smallest red toy is:

Answer»

A box contains 9 red toys, 9 green toys and 7 blue toys. Each ball is of a different size. The probability that the red ball being selected is the smallest red toy is:


2042.

If one pipe A can fill the tank in 10 hours then 4 pipes each of efficiency 20% as that of Pipe A can fill the same tank in how many hours?

Answer»

If one pipe A can fill the tank in 10 hours then 4 pipes each of efficiency 20% as that of Pipe A can fill the same tank in how many hours?


2043.

22. If distinct positive nos a,b,c are in GP and 1/a-b,1/c-a,1/b-c are in AP then the value of a+4b+c is equal to

Answer» 22. If distinct positive nos a,b,c are in GP and 1/a-b,1/c-a,1/b-c are in AP then the value of a+4b+c is equal to
2044.

Question 97A lady buys some pencils for Rs.3 and equal number for Rs. 6. She sells them for Rs. 7. Find her gain of loss %

Answer»

Question 97



A lady buys some pencils for Rs.3 and equal number for Rs. 6. She sells them for Rs. 7. Find her gain of loss %



2045.

Prove that ABCD is a parallelogram

Answer»
Prove that ABCD is a parallelogram
2046.

When x3−2x2+ax−b is divided by x2−2x−3, the remainder is x-6.what are the values of a and b.

Answer» When x32x2+axb is divided by x22x3, the remainder is x-6.what are the values of a and b.


2047.

In the given figure, PM = 10 cm A(∆PQS) = 100 sq.cm A(∆QRS) = 110 sq.cm then Find NR.

Answer» In the given figure, PM = 10 cm A(∆PQS) = 100 sq.cm A(∆QRS) = 110 sq.cm then Find NR.

2048.

Q10. In 2008 all of the people who applied for a job at Wipro also applied for a job at HCL. Wipro and HCL each offered jobs to half of these applicants. Therefore, every one of these applicants must have been offered a job in 2015. The argument above is based on which of the following assumptions about these job applicants?

Answer»

Q10. In 2008 all of the people who applied for a job at Wipro also applied for a job at HCL. Wipro and HCL each offered jobs to half of these applicants. Therefore, every one of these applicants must have been offered a job in 2015.

The argument above is based on which of the following assumptions about these job applicants?


2049.

Q7. The height and the radius of the base of a right circular cone are 12 cm respectively. The radius of the circular cross-section of the cone cut by a plane parallel to its base at a distance of 3 cm from the base is

Answer»

Q7. The height and the radius of the base of a right circular cone are 12 cm respectively. The radius of the circular cross-section of the cone cut by a plane parallel to its base at a distance of 3 cm from the base is


2050.

f(x) = |x|. If f(x) is reflected with respect to the line x -2 =0 to get g(x), then which of the following is g(x)?

Answer»

f(x) = |x|. If f(x) is reflected with respect to the line x -2 =0 to get g(x), then which of the following is g(x)?