Question
The average of 24 numbers is 48. If 5 is added to each
number, then the new average will be:Solution
When 5 is added to each of the numbers, then the new average will be = 48 + (24 × 5)/24 = 53
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
- What is the smallest number that must be added to 1500 so that it becomes exactly divisible by 47?
Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long?
Solve the following equation:
48 ÷ [35 – {30 – (31 – 26 ÷ 2 × 4)}]
How many numbers lie between 2000 and 3000 divisible by 5 can be made with the digits 2, 3, 4, 5, 6, 7 and 8 without repeating any digit?
- The average of five consecutive numbers is 23. Find the middle number.
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Three fruit sellers P, Q and R have different quantities of fruits to sell. P and Q together have fifteen more than half of quantity what P and R togeth...
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