Question
A man must travel 600 km in 12 hours. If he traveled the
first 40% of the journey at a constant speed of 80 km/h, at what speed must he travel the remaining distance so that he finishes the journey on time?Solution
ATQ, 40% of 600 = 240 km Time taken to travel 240 km = 240 ÷ 80 = 3 hours Remaining distance = 600 - 240 = 360 km Remaining time = 12 - 3 = 9 hours So, speed at which remaining distance is to be traveled = 360 ÷ 9 = 40 km/h
More Approximation Questions
? = 80% of 30% of (50 × 150) + 400
Simplify the following expression:
(164-1)/17×15× (28+1)
- Find the value of:
35% of [150% of (45 + 15) + 150] ÷ 75 × 80 540240 ÷ 24 ÷ 25 =?
7.4 × 8.2 + 3.5 × 4.5 = ? + 11.5 × 2.5
2 X 25 + (30% of 80) ÷ (10% of 120) = ?
15% of ? = 30% of 320 + 17 ×√676 – 63.5 × 8
5760 ÷ 45 × 15 = ?
15 × 35 ÷7 + 60% of 300 =?
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