Question

13. What is the smallest number which when diminished by 7, is divisible by 12, 16, 21 and 28?
14. Find the greatest possible length which can be used to measure exactly the lengths 7 m,
togeth. 15. A milk
number of packets of each brand should he buy?
3 m 85 cm, 12 m 95 cm.
10 am to
her at the
o
ond 162 litres of milk. What is the
rs?​

Answer 1

Answer:

13. First find the smallest number divisible by 12,16,18,21 and 28. It is the LCM of these numbers. So the number will be 1008+7 = 1015. So the required number is 1015.

14. The greatest length possible to measure all the given lengths exactly must be 35 cm. Solution: We have to find the "greatest length possible" that can be used to "measure the lengths exactly" 7m, 3m 85 cm, 12m 95 cm.

15. please write the question neatly and in sequence order