MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.6>Q 3

MEDIUM

6th CBSE

IMPORTANT

Earn 100

H.C.F. of co-prime numbers $4$ and $15$ was found as follows by factorisation:
$4 = 2 \times 2$ and $15 = 3 \times 5$ . Since, there is no common prime factor, so HCF of $4$ and $15$ is $0 .$ Is the answer correct? If not, what is the correct H.C.F.?

Important Questions on Playing with Numbers

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 1

Renu purchases two bags of fertilizer of weights

75 k g

and

69 k g .

If the maximum value of weight which can measure the weight of the fertilizer exact number of times is

A kg

, then find the value of

A

.

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 2

Three boys step off together from the same spot. Their steps measure

63 c m, 70 c m

and

77 c m

respectively. If the minimum distance each should cover so that all can cover the distance in complete steps is

A cm

, then find the value of

A

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 3

The length, breadth and height of a room are

825 c m, 675 c m

and

450 c m

respectively. If the longest tape which can measure the three dimensions of the room exactly is

A cm

, then find the value of

A

.

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 4

Determine the smallest

3

-digit number which is exactly divisible by

6, 8

and

12 .

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 5

Determine the largest

3

-digit number which is exactly divisible by

8, 10

and

12 .

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 6

The traffic lights at three different road crossings change after every

48

seconds,

72

seconds and

108

seconds respectively. If they change simultaneously at

7 a . m .

, at what time will they change simultaneously again?

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 7

Three tankers contain

403

litres

434

litres and

465

litres of diesel respectively. If the maximum capacity of a container that can measure the diesel of three containers exact number of times is

A

litres, then find the value of

A

.

MEDIUM

6th CBSE

IMPORTANT

MATHEMATICS TEXTBOOK FOR CLASS VI>Chapter 3 - Playing with Numbers>EXERCISE 3.7>Q 8

Find the least number which when divided by

6, 15

and

18,

leave remainder

5

in each case.