SSC MTS Model Paper 4

Question : 42 of 150

Marks: +1, -0

In the given figure AB || CD || PQ, AB = 12 cm, CD = 18 cm and AC = 6 cm then the value of PQ is:

Solution:

AB⏐⏐CD⏐⏐PQ (Given)
Let AB = a, PQ = b, CD = c

∴ { 1 }/ { { b } } = { 1 }/ { { a } } + { 1 } /{ { c } } { 1 }/ { { b } } = { 1 } /{ 12 } + { 1 } /{ 8 } { 1 } /{ { b } } ={ 3 + 2 } /{ 36 }

{ 1 } /{ b } = { 5 } /{ 36 } b = { 36 }/ { 5 } { cm }

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