Question
Speed of a car and a bus is 24 km/h and 14 km/h,
respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time taken by the bus to cover a distance of ‘5x’ km, then find the value of ‘8x’Solution
According to the question, (5x/14) – (8x/24) = 1 Or, (5x × 12 – 8x × 7) ÷ 168 = 1 Or, (60x – 56x) ÷ 168 = 1 So, x = 42 Required value = 8 × 42 = 336
Two numbers are respectively 60% and 30% more than a third number. Find the ratio of two numbers.
What must be added to each term of the ratio 3:7 so that it may equal to 5:6?
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Find the third proportion of 25 and 40.
In a class of 140 students, the number of boys exceeds the number of girls by 8. If 4 additional girls and 6 additional boys join the class, what will b...
Two numbers are in the ratio 7:4. After adding 2 and 6 to them respectively the ratio becomes 2:3. Find the bigger number.
