Question
The average weight of five students in a class is
recorded as 58 kg. Two of the students have weights of 48 kg and 54 kg, but their actual weights are 45 and 67 of their recorded weights, respectively. What is the actual average weight of all five students?Solution
Actual weight of the 1st student = (5/4) × 48 = 60 kg Actual weight of the 2nd student = (7/6) × 54 = 63 kg Actual average = (58 × 5 – 48 – 54 + 60 + 63)/5 = 62.2 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.)...
Relevant for Exams:
