IS THERE ANY MATHS GENIUS HERE ?
PROVE YOUR TALENT BY SOLVING THESE MIND-BLOWING WORD PROBLEMS BASED ON LINEAR EQUATIONS
No.43 and 45
TRY YOUR BEST !!!!!!!
Answers
43) SOLUTION :
Given :
Let the no. of men who worked to complete the piece of work be x,
Statement 1 :
A certain amount of men can finish a piece of work in 50 days.
We already know that,
Total work done = No. of workers x No. of days (Assuming the work done by all the workers in a day is equal.)
=> From this, we can say that :
Total work = 50 x
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Statement 2 :
If there were 7 more men, the work will complete 10 days earlier,.
Total work = (x + 7)(50 - 10)
=> 50x = (x + 7)40
=> 50x = 40x + 280
=> 10x = 280 => x = 28 ,.
Which means 28 workers worked to complete the piece of work.
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45) SOLUTION :
Given :
let the number of days he was PRESENT be x.
Statement :
A workman is paid ₹ 150 for each day, he works and is fined ₹ 50 for each day he is absent. In a month of 30 days, he earned ₹ 2100.
=> Which means,
=> 150x - 50 (30 - x) = 2100
=> 150x - 1500 + 50x = 2100
=> 200x - 1500 = 2100
=> 200x = 3600 => x = 18,.
For 18 days he was present, which means (30 - 18) = 12 days he was absent.
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Don't call for GENIUS here afterwards, kid,.