Question
Income of Ankit is Rs. 36,000. He spends 18% on rent,
22% on clothing, 'a%' on food, 28% on others and saves the rest. If his savings is Rs. 5,400, find the value of 'a'.Solution
Savings as percentage of income = (5400 ÷ 36000) × 100 = 15%
So, 18 + 22 + a + 28 + 15 = 100
Or, 83 + a = 100
Or, a = 17
A bag contains 8 blue balls, 7 green balls and 5 yellow balls. Three balls are drawn at random. Find the probability that at least two balls are green.
The likelihood that Maya secures a place in college D is 90% and in college E is 85%. Maya's order of preference is 'D', then 'E', and finally 'F'. Assu...
A box contains 5 red, 4 green, and 3 blue balls. Two balls are drawn without replacement. What is the probability both are green?
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
Ten tickets numbered 1 to 15 are placed in a box, mixed up thoroughly and then one ticket is drawn randomly. If it is known that the number on the drawn...
A bag has 7 pink, 4 black and 3 yellow balls while another bag has 5 pink, 6 yellow and 3 blue balls. A bag is selected at random and a ball drawn out ...
Two fair six-faced dice are thrown simultaneously. Find the probability that the sum of the numbers is 10,
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
- 5 boys and 3 girls are to be seated on chairs arranged in a row. If the arrangement is made at random, find the probability that no two girls will be seate...
22 rotten bananas are accidentally mixed with 136 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...