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On every birthday of my life, my mother has seen to it that my cake contains my age in candles. Starting on my fourth birthday, I have always blown out all my candles. Before that age, I averaged a $50\%$ total blowout rate. So far, I have blown out exactly 900 candles. How old am I

Angle between the hour and minute hand of a clock at 11:15 is___

Which of the following indicates the highest absolute difference between the stocks passed the test and produced newly, for any product, during a month?

On which day does N have weekly off?

A sum of $\$75$ when lent on simple interest at the rate of $8\%$ yearly will become double in years.

The first term of an AP is 5, the last term is 50 and the sum is 440. Find the number of terms and the common difference.

A boy is throwing stones at a target. Probability of his hitting the target is $\frac{1}{2}$. The probability of hitting the target for the 5th time in the 10th row is

Consider the following statements about Saakshar Bharat programme:

Which of the above statements is/are incorrect

Let a,b,c be non-zero real numbers such that a+b+c = 0; let $q=a^2+b^2+c^{2}andr=a^4+b^4+c^4$ Then

Fill in the blank:

4 tens + 3 tens + 2 ones + 5 ones =

The base of the vertical pillar with the uniform cross-section is a trapezium whose parallel sides are of length 10 cm and 20 cm while the other two sides are of equal length. The perpendicular distance between the parallel sides of the trapezium is 12 cm. If the height of the pillar is 20 cm, find the total area, in sq cm, of all six surfaces of the pillar is

A fruit seller buys oranges at 4 for RS.3 and sells them at 3 for Rs.4. Find his profit percent.

If $x^2{y}^{3}z<0$, which of the following must be true?

1. 81

For all positive integers n, and $n\ge 1$,
let $a_{n+1}=a_n{a}_{n-1}^2$ and $a_0=1,a_1=8$ then $a_{10}=?$

For a drama, 3 students need to be selected out of 6 students A,B,C,D,E and F. If A is already selected, what is the probability of selecting C also?

An eight digit number divisible by 9 is to be formed by using 8 digits out of the digits 0,1,2,3,4,5,6,7,8,9 without replacement.
The number of ways in which can be done is

How many zeroes will be there at the end of $36{!}^{36!}?$

The digits 1,2,3,4,5,6,7,8,9 are written in random order to form a nine digit number. Find the probability that this number is divisible by 4:

In the figure below, X is a point on diameter AB of the circle with centre O, such that AX = 9 cm, XB = 5 cm. Find the radius of the circle (centre Y) which touches the diameter at X and touches the circle, centre O, internally at Z.

If Operating Profit is defined as Revenue - Expenses and OPM (Operating Profit Margin) as the Operating Profit as a percentage of Revenue, then which of the following statements is true?

Given that a real value function g, is such that g(a+b)=a+g(g(b)) & g(0)=0. Find g(102)?

A water vessel is one – fifth full. Tube X can fill a vessel in 5 minutes and tube Y can empty it in 3 minutes. If both the tubes are open, how long will it take to empty or fill the vessel completely?

1. 0.32

There is an octagonal die with 8 faces having values 1 to 8 on each face. It is thrown 4 times in a sequence. In how many ways can you get a sum which is less than or equal to 20?

On which day did C work overtime?

P is represented as $P=x_a{y}^a+x_{a-1}{y}^{a-1}+.....x_{1}y+x_0$ where $0<x_0..x_a\le y-1$. If x and y are positive integers and y=4, then which of the following could be a representation of an integer with y as a base?