10^7 is the correct answer
Answer:
He fails
Step-by-step explanation:
Marks = 52/61
Percentage = 52/61 x 100 ~ 85%
Pass amrk =86%
85% < 86%
So , he fails
Let she work for x hours as carpenter !
so earned money = 20x
and for blacksmith she must work for 30-x hours
so earned money = (30-x) ×25
so putting in eqn;
20x+25(30-x) = 690
so, x= 60/5 = 12
so she works for carpenter for 12 hrs and 30-12= 18 hrs for blacksmith !!.....answer !!