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In triangle PQR, S and T are mid-points ...

In `triangle PQR`, S and T are mid-points of PQ and PR, respectively. If `angle QPR = 75^@` and `angle PQR = 40^@`, then `angle TSQ` is:
`triangle PQR` में, S और T क्रमशः PQ और PR के मध्य-बिंदु हैं, यदि `angle QPR = 75^@` और `angle PQR = 40^@` तो `angle TSQ` है :

A

`135^@`

B

`120^@`

C

`105^@`

D

`115^@`

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