Question

1.
For each of the following pairs of numbers, verify that product of numbers is
equal to the product of their HCF and LCM.
(a) 10, 15
(b) 35, 40
(C) 32, 48
Find HCF and LCM by using the property in Question no. 1.
(a) 27, 90
(b) 145, 232
(c) 117, 221
please ans 2 no questions​

Answer 1

Answer:

1. product of two no.=hcf×lcm

a)HCF:

10=2×5

15=3×5

hcf=5

LCM:product of uncommon and common factors

=5×3×2

=30

=>hcf×lcm=10×15

5×30=10×15

150=150

Hence verified.

so,the rest of the questions are supposed to be solved this way.

2. HCF=Product of common factors

LCM=Product of common and uncommon factors

a) 27=3×3×3

90=3×3×2×5

hcf=3×3

=9

lcm=9×3×2×5

270

REST OF TGE QUESTIONS ARE TO BE SOLVED BY THIS METHOD