Question
The average weight of 48 students in a school is 32 kg.
If two new students with weights of 'x' kg and '(x + 6)' kg join the group, the average weight of the class increases to 32.4 kg. Determine the average weight of the two new students.Solution
Total weight of 48 students = 48×32 = 1536 kg When two students join the class then new total weight = 50×32.4 = 1620 kg Increase in weight = 1620-1536 = 86 kg Average of 2 new students = 84/2 = 43 kg
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
