Question

solve the question
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Answer 1

Answer:

I will not do them step by step, sorry

Step-by-step explanation:

1.

y = 165 ×2

hence, y= 230

now,

X = 2 × y

X = 2 × 230

hence, X = 460

2.

The greatest four digit number =9999

we can get the required number by following steps:

step 1 : Divide 9999 by LCM of 15,24 and 36

Step 2 : Subtract result of step 1 from 9999.

Prime factorization :

15=3×5

24=2

3

×3

36=2

2

×3

2

LCM (15,24,36)= 2

3

×3

2

×5=360

Step 1 : Dividing 9999 by 360, we get 279 as remainder.

Step 2 : subtract 279 from 9999

9999−279=9720

the greatest number of four digit which is exactly divisible by 15,24 and 36 is 9720.

3.--------

4.

The HCF of 1001 and 910 is 91.

5.

LCM × HCF = product of

numbers

43516 × HCF = 989 × 1892

HCF = 989 × 1892/43516

hence, HCF = 43

6.