Question
There are five boxes in a cargo hold. The weight of the
first box is 200 kg and the weight of the second box is 20% higher than the weight of the third box, whose weight is 25% higher than the first box's weight. The fourth box at 350 kg is 30% lighter than the fifth box. Find the difference in the average weight of the four heaviest boxes and the four lightest boxes:Solution
Let the weight of five boxes be W1, W2, W3, W4 and W5 respectively. ATQ: W1 = 200 kg W3 = 125/100 × 200 = 250 kg W2 = 120/100 × 250 = 300 kg W4 = 350 W5 = 350 × 100/70 = 500 kg Now, Avereage weight of 4 heaviest boxes = (500 + 350 + 300 + 250)/4 = 350 kg Avereage weight of 4 lightest boxes = (200 + 250+ 300 + 350)/4 = 275 kg Required difference = 350 - 275 = 75 kg
Select the pair in which the numbers are related to each other in the same way as are the numbers in the given pairs. (NOTE: Operations should be perfor...
What should be the next term in the series 2, 3, 6, 6, 10, 9, 14, 12, ___ ?
What will come in the place of '?' in the following equation, if '+' and '-' are interchanged and ' X ' and '÷' are interchanged?
8 - 6 ÷ 12 + ...
In a certain code language ‘TARGET’ is written as ‘QASSEF’ and ‘BANNED’ is written as ‘MAACEM’. How is ‘SHARED’ written in that code...
QPO, NML, KJI,____, EDC
Eight persons P, Q, R, S, T, U, V and W sit in a linear row. All of them face towards north. P sits third from one of the ends. Only two persons sit bet...
A train route starts and goes 21 km North, then the route turns towards West for 7 km, then it turns North for up to 10 km, and then a right turn where ...
Six people are sitting in two parallel rows with 3 people each, in such a way that there is equal distance between adjacent persons. PY, OY and TY are s...
Seven girls Kiran, Lina, Mina, Nina, Oshi, Pinki and Qizma are sitting in a straight line facing the same direction. Four girls are sitting between Qizm...
How many persons sit to the left of T?
