- Option : B
- Explanation :

Let the total number of people are 100.

So, M must be 80 – 40 = 40

Ratio of male of female

40 : 40

1 : 1

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- Option : C
- Explanation :

Four green, two red face

Option 3 is maximum value.

So, five green faces and two red faces.

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- Option : B
- Explanation :

Male + Female = 300 ...(i)

Total money = (8/9)M x 750 + (2/3)F x 1000

= (6000/9)M + (6000/9) F

= (6000/9)(M + F)

From equation (i)

Total money = (6000/9)(300) = 2,00,000

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- Option : C
- Explanation :

p^{x}= q

q^{y}= r

xlogp = logq

ylogq = logr

zlogr = logp

x = logq/yp

y = yz/logq

z = logp /yr

x x y x z = 1

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