A train 300 m long crosses a platform 900 m long in 1 minute. What is the speed of the train in km/hr?

20 workers can finish a work in 30 days. After how many days 5 workers can be removed and still get the work completed in total 35 days?

Rupam spends 20% of his salary in food, 5% in cloth, 2% as investment. In these three items, he spends ₹ 5,400. The amount of his salary is:

The average weight of students in a class of 15 boys and 10 girls is 38.4 kg. If the average weight of the boys alone is 40 kg, what is the average weight of the girls?

12 men takes 18 days to construct a road. How many days will 9 men take to construct the same road?

Q is the only sister of A, who is the only son son of B. B's wife is the daughter of P, who has only one son R. How is R related to Q?

Laxman went 15 m to the west from his house, turned left and walked for 20 m. He then turned east and walked 25 m and finally turned left and covered 20 m. How far was he from his home?

A train is travelling at a speed of 40 kmph, whose length is 80 m. In how many secs. will it cross a bridge of 120 m length?

Find the HCF of the following numbers:

3/4, 5/6, 6/7

Two numbers are in the ratio 2:3 and the product of their LCM and HCF is 96. The sum of the numbers is:

The Simple interest earned by ₹ 4000 in 18 months at 12% interest per annum is

Ekanta is son of Atul. Devang is son of Brijesh. Ekanta is married to Chitra. Chitra is Brijesh’s daughter. How is Devang related to Ekanta?

Chaya wakes up in the morning. She finds that the sun has come up. She goes to a nearby park and starts running towards North. Towards which direction of her will be her own shadow?

In a row of trees, a tree is seventh from the left and fourteenth from the right. How many trees are in the row?