Question
Aman and Raj are running on a circular track that
measures 1800 meters in circumference. Aman runs at a speed of 5 m/s, while Raj runs at 4 m/s. What is the distance covered by Aman when they both meet again at the starting point for the first time after the race begins?Solution
Time taken by Aman to complete a round = 1800 ÷ 5 = 360 seconds And time taken by Raj to complete a round = 1800 ÷ 4 = 450 seconds Time after which they will meet at starting point for first time = LCM (360 and 450) = 1800 seconds Distance covered by Aman in 1800 seconds = 1800 X 5 = 9000 metres
(1/2) – (3/5) + 3(1/3) = ? + (5/6)
9 × 40 × 242 × 182 = ?2
212.3 × 4414.7 × 4623.4 × 4845.85 = 462?
52% of 400 + √(?) = 60% of 600 - 25% of 400
447.8 × 441.2 ÷ 445 = 44 × 44?
Determine the value of 'p' in following expression:
720 ÷ 9 + 640 ÷ 16 - p = √121 X 5 + 6²- 7What will come in the place of question mark (?) in the given expression?
(? ÷ 16) = (20 ÷ ?) X 20- What will come in the place of question mark (?) in the given expression?
62.5% of 120 + ? = (720 + 90) ÷ √36 - What will come in place of the question mark (?) in the following questions?
25% of 360+40=? 30% of 2200 +’?’ x 50 – 1020 = 11x 306 + (√ 2250 ÷ 0.1) Â
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