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If a, b and c are three real numbers, then which of the following is NOT true?

A number 777....7 containing 77 sevens is divisible by?

One year ago, Promila was four times as old as her sister Sakshi. Six years hence, Promila's age will exceed her sister's age by $9$ years. The ratio of the present ages of Promila and her sister is

Four identical circles are drawn taking the vertices of a square as centers. The circles are tangential to one another. Another circle is drawn so that it is tangential to all the circles and lies within the square. Find the ratio of the sum of the areas of the four circles lying within the square to that of the smaller circle?

If the import is growing at an annual rate of 15 % and export is growing at an annual rate of 5 % then percentage increase in trade deficit from 1998-1999 to 2000-01 will be nearest to ?

Question 143(iii)

Use the propeties of exponents to verify that each statement is true.
$25\left(5^{n-2}\right)=5^n$

If UTILITY is coded as 3293927, then EXAMINATION is coded as

The number of passengers travelling to Chennai by airline A in the second quarter is $150\%$ of that in the first quarter by the same airline. The number of passengers travelling to Chennai in the second quarter by the same airline is $120\%$ of that in the third quarter. What is the percentage increase in the number of passengers in the third quarter from that in the first quarter?

A house has a window `h' meters above the ground. Across the street from this house, there is a tall pole. The angles of elevation and depression of the top and bottom of this pole from the window are $\theta$ and $\Phi$ respectively. Determine the height of the pole.

Statement: Ramesh decided to get the railway reservation in February for the journey he wants to make in May to Chennai.

Assumption:

I. The railway issues reservations three months in advance.

II. There are more than one train to Chennai.

III. There will be vacancy in the desired class.

Is byju's enough in class 11th and 12th and JEE examination or any other Coaching Centre or Institute is required

20 men can complete a work in 20 days. After how many days should the number of men be increased by 50% so that the work is completed in 75% of the actual time?

Directions: Study the following table carefully and answer the questions that follows:
Chart showing schedule of train from Dadar to Bhuj and number of passengers boarding from each station

How much time does the train take to reach Ahmedabad after departing from Anand Jn. (including the halt time)?

prove that : F=Gm1m2/r²

Who among the following is from Gujarat?

Four alternative options are given for each of the following statements.

Select the correct option.

An article costing Rs 600 is sold for Rs 750. The gain percentage is:

A. 20

B. 25

C. 30

D. 35

The schedule of which of the following subjects can be uniquely determined?

What is the probability that a two digit number selected at random will be a multiple of '3' and not a multiple of '5'?

Two mutually perpendicular chords AB and CD meet at a point P inside the circle such that AP=6 units PB=4 units and DP=3 units. What is the area of the circle?

40 students were surveyed about their favourite singer.24 liked Katy Perry.12 liked Enrique Iglesias.7 liked both.How many students like only one of them ?

Consider a square track ABCD. A circular track EPHQ is inscribed in the above square track, while a hexagonal track EFGHIJ is inscribed in the above circle and track EGI is a triangular path inscribed inside the hexagonal track. All figures are regular.
Four runners W, X, Y and Z start running simultaneously from point E on square, circular, hexagonal and triangular tracks respectively, but W and Y in clockwise direction and X and Z in anti-clockwise direction and they all meet for the first time when W,X,Y and Z have completed 1, 2, 3 and 4 rounds respectively. What is the ratio of their speeds?

Find out the appropriate word which fits the 3rd blank.