Question
Vicky and Vikram start running simultaneously around a
rectangular track of length 500m from the same point at speeds of 30 km/hr and 20 km/hr. When will they meet for the first time anywhere on the track if they are moving in opposite directions?Solution
Relative speed = 30 + 20 = 50 km/hrs Time taken to meet for the first time = length of the track/ relative speed => 500 / (30 + 20) => (500 x 18)/(50 x 5) = 36 sec
What will come in place of the question mark (?) in the following expression?
18 × 16 – 11 × 4 = 15² + ?
If a nine-digit number 389x6378y is divisible by 72, then the value of √(6x + 7y) will be∶
(22.5 × 24) ÷ 40 + 51.50 = ? ÷ 5.25
(115 × 17 × 3)/(23 × 51) + ?3 = √169
180 ÷ 3 of 2 = 102 – ?
6612 ÷ 19 - ?% of 240 = -2196
54% of 250 = 6 × 21 + √?
What value should come in place of the question mark (?) in the following question?
45 × 2 + 180 ÷ 6 − 12 = ?
What will come in the place of question mark (?) in the given expression?
59.92 × 15.11 + √4224 = ? + 144.9
Evaluate: {2 x (0.718 + 0.982) + 0.008 of 5000}
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