Let Mohan’s initial weight = 7x kg Meera’s initial weight = 8x kg Therefore, 7x + 8x = 120 ⇒ x = 8 Mohan’s weight = 7 × 8 = 56 kg Meera’s weight = 8 × 8 = 64 kg Let Meera reduces by y kg. Thus,
56−6
64−y
=
5
6
⇒6(50)=5(64−y) ⇒300=320−5y ⇒y=4 Thus, Meera has reduced by 4 kg.