Question

LO
Q.1
Identifies and classifies different numbers such as odd, even, co-prime, prime and
composite numbers.
Do as directed.
1) Write Prime numbers between 20 to 30.
2) Determine if 263921 is divisible by 3.
3) State whether 15 and 37 are Co-prime numbers.
4) If a number is divisible by 5 and 12 then by which other number will it be
divisible.
Uses HCF and LCM at appropriate condition.
Do as directed.
1) Find the HCF of 18, 54, 81
2) The traffic lights at three different road crossing change after every 48 seconds.
seconds and 108 seconds respectively. If they change simultaneously at 7 an
what time will they change simultaneously again?
LO
Q.2​

Answer 1

Answer:

3 is the correct answer l think