Question
When travelling downstream, a boat takes 6.25 hours to
travel 275 km. If the speed of the stream is (4/11)th of downstream speed of the boat, then find the time taken by the boat to cover 308 km in still water.Solution
Downstream speed of the boat = 275/6.25 = 44 km/hr Speed of the stream = 44 x (4/11) = 16 km/hr So, speed of the boat in still water = 44 – 16 = 28 km/hr Required time taken = 308/28 = 11 hours
Evaluate: (768÷16)×(125÷25)−(81÷9)×12
[(4/3) + (5/6)] of 378 = ?
What will come in the place of question mark (?) in the given expression?Â
48 ÷ 4 × (3 + 5) – 6² + 10 = ?
What value should come in place of the question mark (?) in the following question?
1250 − ( 320 + 180 ) × ...
(360 - ?)/(25% of 96) = 13
What value will come in place of (?) question mark in the given expression.
3³ + 4² × 5 – 28 = ?
What value should come in the place of (?) in the following questions?
53 × 12 + 43 × 13= ? × 7 - 12% of 1300
2*1/3 + 22*1/3 + 222*1/3 + 2222*1/2 + 22222*1/2 = ?
Solve for the ?
(5832)1/3  × 10.11 × 11.97 ÷ 16.32 = ? + 45.022
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