Question
The ratio of the pocket money of two persons ‘C’ and
‘D’ is 4:3, respectively. ‘C’ spends 50% of his pocket money while ‘D’ spends 75% of his pocket money. If the savings of ‘C’ is Rs. 120 more than that of ‘D’, then find the total pocket money of ‘C’.Solution
Let the pocket money of ‘C’ and ‘D’ be Rs. 4x and Rs. 3x respectively
(0.5 × 4x) – (0.25 × 3x) = 120
2x – 0.75x = 120 → 1.25x = 120 → x = 96
Therefore, pocket money of ‘C’ = 4x = Rs. 384
A ball is thrown from a height of 900 m on the ground. It bounces (2/3) times of its every last bounce. Find the total distance covered by the ball ti...
Find the mode of the following data:
6,15,18,6,18,11,23,22,6,18,15,22,12
A shopkeeper bought two article A&B for a total of rupees 3500. He marked Article A 140% above its cost price and sold it after giving a discount of 20%...
The marks obtained by 12 students out of a maximum of 30 in a test are given as 25, 28, 24, 22, 25, 18, 20, 22, 19, 23, 22, and 26. Find the sum of the ...
The median of the following data will be ___
32,25,33,27,35,29,14,26 and 30.
The cost of an item is 'A'. A shopkeeper increases the price by 'x'%, then applies a discount of 'd'% on the increased price. Aft...
The current age of Anupama is 25% greater than Chinky's age. Four years ago, the ages of Beena and Chinky were in the ratio of 4:...
The 4th term of an AP is 17 and the 9th term is 42. Find the sum of the first 20 terms.
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...
What is the mode of the given data?
5, 7, 9, 7, 3, 7, 5, 7, 8, 6, 7