Question

If 50% of A= 0.4 of B=1/5 of C, then A:B:C= ?
a) 4:5:8
b) 4:7:10
c) 4:5:10
d) 3:5:10

Ans is c) 4:5:10. Please tell how to solve

Answer 1

Step-by-step explanation:

According to you,

• The equation is:
• $\frac{a}{2} = 0.4b = \frac{c}{5} \\ then \: \: \: a = 0.8b$
• Secondly,the equation is:
• $\frac{a}{2} = \frac{c}{5} \\ then \: \: \: 5a = 2c$
• If we consider A=4

$0.8b = 4 \\ b = \frac{4}{0.8} \\ so \: \: \: \: b = 5$

• Then,
• $5 \times 4 = 2c \\ 20 = 2c \\ 2c = 20 \\ c = \frac{20}{2} \\ so \: \: \: \: \: \: c = 10$
• So,A=4
• B=5
• C=10

So, A:B:C= 4:5:10

• plz mark it as brainliest answer plzz

Answer 2

Answer:

ATQ(According to question)

Step-by-step explanation:

I HOPE THAT IT'S HELPFUL FOR YOU.