Question

If a = 3,b = 2 and c = 4, find the value of 2a + 3b-5c,
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Answer 1

Answer:

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Step-by-step explanation:

Given,

a=3

b=2

c=4

So,

2a+3b-5c

= 2(3) + 3(2) - 5(4)

= 6 + 6 - 20

= - 8

Answer 2

Let, a/2=b/3=c/4=p, then a=2p, b=3p&c=4p

Therefore, (2a-3b+5c)/k=a/2

»(2×2p-3×3p+5×4p)/k=2p/2

»p(4–9+20)/k=p

»15/k=1

required value of k is15