The speed of first train is 45km/hr. and the speed of another train is 10m/sec. find the ratio of their speed?

Lal Babu and Mangallu can finish a work in 10 days while Lal Babu alone can finish that work in 15 days, then how many days will Mangallu take to do that work?

The product of two consecutive odd numbers is 399. Find the lower of them.

In a kilometer race, A can give B a start of 100 m or 15 seconds. How long does A take to complete the race?

The bar chart given below shows the exports (in ₹000) and imports (in ₹000) of a country for 5 consecutive years.

What is the positive difference in the total export figures of all the five years taken together and the total import figures of all the five years taken together?

Direction : Each of the questions below consists of a question and two statements numbered I and II are given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and
Give answer
(A) If the data in statement I alone are sufficient to answer the question, while the data statement II alone are not sufficient to answer the question.
(B) If the data in Statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
(C) If the data in statement I alone or in Statement II alone are sufficient to answer the question.
(D) If the data in both the statement I and II are not sufficient to answer the question.
(E) If the data in both the statement I and II together are necessary to answer the question.

What is the mother’s present age?
I. Present ages of mother and child are in the ratio of 5:1 respectively.
II. Four years hence the ratio of the ages of mother and child will be 17:5 respectively.

Three numbers which are co-prime to one another are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is: 

By what least number should 4320 be multiplied so as to obtain a number which is perfect cube?