Question

Musa got 750 bags of coffee

2011 yield dropped by 30%
2012 rose by 15%
A bag of coffee weighs 55kg and he paid 7900 shillings per tonne
Thereafter the price per tonne increased by 10% find his earnings from coffee hence find his total income for the three years

Answer 1

2011: 0.3×750= 225

therefore, 750-225=525

2012: 0.15 × 525= 78.75

therefore, 525 + 78.75= 603. 75

bag of coffee: mass (kg)

1: 55

603.75: x

x= 55 × 603.75

=33206.25 Kg

33206.25÷1000= 332.0625

tonne: shillings

1:7900

332.0625: x

hence, x= 2623293.75 shillings

8690× 332.0625= 2885623. 125 shillings