Question
Rajeev spends 30% of his monthly income on cloths and
food and 20% of remaining on rent and saves the remaining amount. If he saves Rs 17920 per month, then what does Rajeev spend on food and clothes?Solution
325 mangoes are distributed among some boys and girls who are 60 in numbers. Each boys gets five mangoes and each girls gets six. The number of boys is :
Consider two natural numbers, 'a' and 'b', which are in the ratio of 17:20. If we increase 'a' by 18 and decrease 'b' by 20, the new ratio of 'a' to 'b'...
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Sum of squares of three consecutive numbers is 1730. Find the sum of first and third number.
How many composite numbers are there from 41 to 79?
If the 4-digit number r76s is exactly divisible by 9, what is the least value of (r + s)?
In a two digit positive number, the digit in the unit’s place is equal to the square of the digit in ten’s place, and the difference between...
The denominator of a rational number is 4 more than its numerator. If the numerator is increased by 5 and the denominator is decreased by 3, we obtain 3...
When the digits are swapped, the new two-digit number equals 44 less than 120% of the original. The sum of the digits is 13. Determine the original number.