Keerthana
Posted on

यदि (P - Q) का 50% = (P + Q) का 30% और P का Q = x% है, तो x का मूल्य है:

a

30

b

25

c

20

d

50

Answer : Option B
Explanation :

PQ2=(P+Q)×30100\frac{P-Q}{2}=(P+Q) \times \frac{30}{100}

5(PQ)=(P+Q)×3\Rightarrow 5(\mathrm{P}-\mathrm{Q})=(\mathrm{P}+\mathrm{Q}) \times 3

5P3P=5Q+3Q\Rightarrow 5 \mathrm{P}-3 \mathrm{P}=5 \mathrm{Q}+3 \mathrm{Q}

2P=8Q\Rightarrow 2 \mathrm{P}=8 \mathrm{Q}

P=4Q=4×P×x100\Rightarrow \mathrm{P}=4 \mathrm{Q}=4 \times \frac{\mathrm{P} \times x}{100}

4x100=1x=25\Rightarrow \frac{4 x}{100}=1 \Rightarrow x=25

Rate This:
NaN / 5 - 1 votes
Profile photo for Dasaradhan Gajendra