Question
Why does a fountain pen leak on an airplane flying at
high altitude?Solution
The lower atmospheric pressure outside the pen at high altitudes causes the higher pressure inside the pen to force the ink out.
Three numbers are in the ratio 5:7:11. If the difference between the sum of the smallest and the largest number and the sum of the smallest and the seco...
If ‘+’ means ‘-‘, ‘×’ means ‘÷’ ‘÷’ means ‘+’ and ‘-‘ means ‘×’, then which of the following will be the value of th...
If x varies inversely as (y2 – 1) and is equal to 40 when y = 5 then the value of x and y = 7 is
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 30 and ratio of the 4th and the 5th number is 2:3. If difference between t...
There are nine consecutive even numbers such that the smallest number is 50% of the largest number. Find the sum of the second lowest and second highest...
Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s fathe...
A, B and C hired a taxi for Rs. 880 and used it for 2, 4, 5 hours respectively. Hiring charges paid by B are:
- The product of two positive numbers is 720. If one of the numbers is four times the other, then find the difference between the given two numbers.
The digits of a two-digit number ‘N’ are reversed to form a new number ‘M’. If M < N and N – M = 45, then which of the following maybe ‘N’...
‘Z’ is a two digit number in which the unit place digit is ‘P’ and the tens place digit is ‘Q’. The value of ‘P’ is smaller than the val...
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