New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 18

EASY

10th CBSE

IMPORTANT

Earn 100

Show that $247$ and $187$ are co-prime [Relatively prime].

Important Questions on Number System

EASY

10th CBSE

IMPORTANT

New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 19

Show the numbers of form

4 m

and

4 m + 2

cannot be co-prime.

MEDIUM

10th CBSE

IMPORTANT

New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 20

There are

120

boys and

114

girls in class

X

of a school. Principal of the school decided as a policy matter to have a maximum number of mixed sections, each section has to accommodate equal number of boys and equal number of girls. What is the maximum number of such sections?

MEDIUM

10th CBSE

IMPORTANT

New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 21

Length, breadth and height of a cuboidal room are

6.15 m, 4.25 m and 3.15 m

. Find the length of the longest rod required to measure each of length, breadth and height of the room completely [exactly]. Also find how many times we will use this rod of the longest length to measure length, breadth and height.

MEDIUM

10th CBSE

IMPORTANT

New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 22

A mason has to fit a bathroom with square marble tiles of the largest possible size. The size of the bathroom is

14.5 ft

by

12.5 ft

. What would be the size of tiles in inches? How many such tiles are required?

MEDIUM

10th CBSE

IMPORTANT

New Mathematics for Class X>Chapter 1 - Number System>EXERCISE>Q 23

A bookseller purchased

117

books out of which

45

books are of mathematics and the remaining

72

are of physics. Each book has same size. Mathematics and physics books are to be packed in separate bundles and each bundle must contain same number of books. Find the least number of bundles which can be made for these