Teaching DSSSB PGT Mock Test 2025 Mathematics Statistics

Let P, Q, R represent mean, median and mode. If for some distribution \(5 P=4 Q=\frac{R}{2}\) then what is \(\frac{P+Q}{2 P+0.7 R}\) equal to ?

1
\(\frac{1}{12}\)
2
\(\frac{1}{7}\)
3
\(\frac{2}{9}\)
4
\(\frac{1}{4}\)
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