1. If 20 men assemble 8 machines in a day,how many men are needed to assemble 12 such machines per day?
(Hint): you should want to try in ratio form
2.If 3/5 quintal of rice costs rupees 180, what will be the costs of 5/6 quintal of rice?
3.A person saves rupees 12522 in one year.How much does he saves in 3,5 and 7 months?
Answer: 1) 30 Men
2) 250rs
3) ₹3,130.5
Step-by-step explanation:
1 ) 20/8=x/12
5=x/6
x=30
2) 3/5quintal of rice costs=180rs
5/6quintals of rice costs= (180÷3/5)×5/6
= (180×5×5)/3×6
= (10×25)rs
= 250rs
3) A person saves rs 12522 in one year.
1 year = 12 month
12 month = ₹ 12522
1 month = 12522/12
= 1043.5
Acc to question
For three month
= 1043.5 × 3
= ₹3,130.5
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