Question
Axar covered 1/4th of the total distance at a speed of
25 km/hr. Then, he covered (1/2) of the remaining distance at a speed of 30 km/hr, and the rest of the distance at a speed of 25 km/hr. If the total time taken by Axar to cover the entire distance is 6 hours, determine the total distance he traveled.Solution
ATQ, Let the total distance covered by ‘Axar’ be ‘4a’ km ATQ, (a/25) + {3a/(2 × 30)} + {3a/(2 × 25)} = 6 Or, 60a + 75a + 90a = 9000 Or, 4a + 5a + 6a = 600 Or, 15a = 600 Or, a = 600/15 = 40 Therefore, total distance covered by ‘Axar’ = 4x = 4 × 40 = 160 km
Simplify the following expression and find the final value:
(18 ÷ 6 of 2 + 7 of 5) ÷ 5
(1520 - 1350) ÷ (550 – 500) = ?
Simplify the following expressions and choose the correct option.
[540 ÷ (6 × 3) + 7.5 × 4] ÷ 3 = ?
(64/25)? × (125/512)?-1 = 5/8
52% of 400 + √(?) = 60% of 600 - 25% of 400
What will come in the place of question mark (?) in the given expression?
(72 × 4 – 92) ÷ 14 = ?
32% of 450 + 60% of 150 = ? × 9
82.3 × 644.7 × 723.4 × 815.85 = 72?
961 × 4 ÷ 31 – 15% of 180 = ? – 73
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