A person travelled a distance of 150 km and then returned to the starting point. The time taken for the outward journey was 2(1/2) hours more than that for the return journey. His speed for the return journey was 10 km/h more than that for the outward journey. His speed for the return journey, in km/h, was:
Twelve years ago, the ratio of the ages of A and B was 12 : 5. Twelve years from now, the ratio of their ages will be 18 : 11. What is the difference between their present ages (in years)?
The marked price of an article is 35% above its cost price. After giving a 20% discount on the marked price, its sold for ₹432. What is the cost price of the article?
When x is added to each of 7, 13, 19 and 29, the numbers so obtained in this order are in proportion. What is the mean proportional between (3x - 8) and (x + 5) ?
A sum of ₹x amounts to ₹6,900 at 5% p.a. in a time in which a sum of ₹9,000 amounts to ₹10,080 at 4% p.a., both at simple interest. The value of x is:
A can do 40%, of a work in 24 days., and B can do 33(1/3) of the same work in 15 days. They work together for 15 days. C alone completes the remaining work in 10 days. A and C together can complete 35% of the same work in:
A shopkeeper bought 600 pens. He sold 480 of them for the price he paid for 600 pens, 100 pens at 10% higher rate than that at which he sold 480 pens, and the rest at the cost price. His profit percentage in the transaction is:
A sum invested at compound interest amounts to ₹8,000 in 4 years and ₹8,400 in 5 years, interest being compounded yearly. What will be the amount of the same sum at the end of the 6th year?
Study the given bar graph that shows the number of students (boys and girls) in different schools on 1 July 2019 and answer the question that follows.
In which school is the number of boys 25% more than the average number of girls in all five schools?
The ratio of the number of boys and girls in a class is 5 : 7. In English, the average score of boys is 48 and the average score of girls is 25% more than that of boys. What is the average score in English of all the boys and girls in the class?
