New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 6 Playing With Numbers Self Practice 3J Solution
(1)
Sr. No. |
Column 1 |
Column 2 |
(a) |
Product of Numbers |
Product of HCF and LCM |
9 x 12 = 108 |
9 x 36 = 108 |
|
(b) |
15 x 20 = 300 |
5 x 60 = 300 |
(c) |
21 x 24 = 504 |
3 x 168 = 304 |
(d) |
20 x 12 = 240 |
4 x 60 = 240 |
(2) HCF x LCM = product of two number
∴ 26 x 1820 = 130 x number
Or, Other number = 26×1820/130
= 364
Ans – 364
(3) 570 ÷ 14
Quotient is 4
Remainder is 10
Ans – No the LCM of two numbers is exactly divisible by their HCF.
Here, 570 is not divisible by 14.
(5) P = 23 x 310 x 5
Q = 25 x 3 x 7
∴ HCF of P and Q = 23 x 3
∴ LCM of P and Q = 25 x 310 x 5 x 7
(5) d) 80
Because, 80 is not divisible by 6.