Three girls, mubanga, liseli and enala, packs biscuits in a factory. from the batch allotted to them mubanga packs 55%, liseli 30% and enala 15%. the probability that mubanga breaks some biscuits in a packet is 0.7 and the respective probabilities for liseli and enalaare 0.2 and 0.1. what is the probability that a packet with broken biscuits found by the checker was packed by i. mubanga? ii. liseli? iii. enala?