Number System MCQs

The number of numbers from 1 to 200 which are divisible by neither 3 nor 7 is :

P is a prime number and (P2 + 3) is also a prime number . The no. of numbers that P can assume is:

A naughty boy Amrit watches a Sachin Tendulkar inning and acts according to number of runs he sees Sachin scoring. The details are: 1 run - place one orange in the basket 2 runs - place one mango in basket 3 runs - place a pear in the basket 4 runs - remove a pear and a mango from the basket One fine day, at the start of the match, the basket is empty. The sequence of runs scored by Sachin in that inning are given as 11232411234232341121314. At the end of the above inning, how many more oranges were there compared to mangoes inside the basket ? (The Basket was empty initially).

Three mangoes, four guavas, and five watermelons cost Rs. 750. Ten watermelons, six mangoes and 9 guavas Cost Rs. 1580. What is the cost of six mangoes, ten watermelons and 4 guavas?

A two digit number ab is added to another number ba, which is obtained by reversing the digits then we get three digit number. Thus (a + b) equals to:

A gardener plants his garden with 5550 trees and arranged them so that there is one plant more per row as there are rows then number of trees in a row is:

The sum of two numbers is 18. The greatest product of these two number can be:

The unit digit of (316)34n + 1 is :

A number when divided by 14 leaves reminder of 8, but when the same number is divided by 7, it will leave the remainder :