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
√3598 × √(230 ) ÷ √102= ?
7(1/2) – 3(5/6) = ? − 2(7/12)
Simplify the following expression.
(3-3 × 3 + 3 ÷ 3 + 3 × 5) × 2 of 5 + (2 + 2 ÷ 2 + 2 × 2 - 2)
What will come in the place of question mark (?) in the given expression?
(437 + ? - 167) x 2.5 = 875I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
?2 = √20.25 × 10 + √16 + 32
15(2/9) + 11(2/9) + 17(1/9) + 13(4/9) = ?
- What will come in the place of question mark (?) in the given expression?
32% of 74% of ? = 16% of 37% of 180 15% of 695 – 12.5% of 250 =? – 1200