Question
In a colony, there are 30 APL families and 36 BPL
families. Each APL and BPL family got blankets equal to 25% and 75%, respectively of total number of families (APL + BPL) in the colony. Find the difference between total number of blankets received by APL and BPL families.Solution
Total number of families in the colony = 30 + 36 = 66 Number of blankets received by APL families = 30 x 0.25 x 66 = 495 Number of blankets received by BPL families = 36 x 0.75 x 66 = 1782 Required difference = 1782 - 495 = 1287
14, 28, 56, 112, ...... The sum of first 10 numbers in the series is:
The sum to n terms of the series 1 + 1 + 3 + 1 + 3 + 5 + 1 + 3 + 5 + 7 …………………… is
What is the median of the following list of numbers: 5, 3, 6, 9, 11, 19,12,20, and 1?
18, 27, 54, 135, 400, 1417.5
If the angular diameter of the sun is 20, how far from the eye a coin of radius 3.3 cm be kept to hide the sun?
The sum of 6 consecutive odd numbers is 156. What will be the product of first number and the last number?
If p:q = 5:7 and p + q = 408, then find the value of (q - p).
A total of Rs. 558 was distributed among P, Q, R, S, T, and U. The amounts they received were in descending order and formed an arithmetic progression. ...
If a, b, c are in geometric progression and a + b + c = 14, a² + b² + c² = 84, find a, b, c.
Boat ‘A’ can cover 320 km in still water in 16 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 5:3 and the sp...