CBSE 6th Mathematics

The predecessor of 7654321 is ___.

• 7654320
• 7654322
• 7654319
• 7654323

The successor of 100199 ___ is

• 100200
• 100198
• 100201
• 100199

LCM OF TWO NUMBERS 12 AND 16 IS 48. FIND THEIR HCF?

• 6

• 4

• 8

• 3

Boxes that are 12 cm tall are being stacked next to boxes that are 18 cm tall. What is the shortest height at which the two stacks will be at the same height?

• 24 cm

• 36 cm

• 72 cm

• 30 cm

THE HCF OF 15 AND 6

• 5

• 6

• 3

• 2

WHICH OF THE FOLLOWING IS THE FACTOR PAIR OF 84?

• 2 AND 21

• 6 AND 14

• 3 AND 36

• 9 AND 7

WHICH OF THE FOLLOWING IS A PRIME NUMBER?

• 191

• 82

• 54

• 343

WHAT IS THE LCM OF 3, 5 AND 7?

• 126

• 21

• 105

• 63

Which of the following is NOT a factor pair of 24?

• 6 AND 4

• 12 AND 2

• 8 AND 4

• 3 AND 8

Three clocks ring once at the same time. After that, the first clock rings after every 12 minutes, the second after every 24 minutes, and the third after every 36 minutes. After how many minutes will they again all ring together?

• 72 minutes

• 120 minutes

• 180 minutes

• NONE OF THESE