Question

Abhay and shreya can individual complete a piece of work in 42 min and 70 min respectively .Starting with abhay

Answer 1

Abhay work = 42 min

Shreya work = 70 min

together they work =?

so, Abhay=1/42
Shreya=1/70

so they together work =1/42+1/70

LCM of 42 and 70=210

$\frac{1 \times 5}{42 \times 5} = \frac{5}{210}$
$\frac{1 \times 3}{70 \times 3} = \frac{3}{210}$

$\frac{5}{210} + \frac{3}{210} = \frac{8}{210}$
$\frac{ {8}^{1} }{210} = \frac{210}{8} = 26.25 ans$
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