The price of 4 kg of rice is equal to the price of 9
kg of wheat. If the price of 1kg of wheat is 20 rs
What is the total cost of 8 kg of rice and a kg of
wheat ?
Answers
Answer:
4 kg if rice =9 kg of wheat .....given
1kg of wheat =20rs......given
therefore,
9 kg of wheat =20 ×9 rs
=180rs
Then ,
4 kg of rice = 9 kg of wheat.....given
4 kg of rice = 180 rs
then,
8 kg of rice = 2 × 4kg of rice
8 kg of rice = 2×180rs
8 kg of rice =360rs
then,
1kg of rice= 180÷4
1kg of rice = 45rs
GIVEN: price of 4kg of rice=price of 9kg of wheat price of 1kg of wheat=20rs
to find: the cost of 8kg of rice and 6kg of wheat.
Step-by-step explanation:
Let the price of 4kg of rice be x.
therefore,
4x=9x20
4x=180
x=180/4
x=45
therefore, the price of 1kg of rice is 45rs.
now, to find the price of 8kg of rice.
we know that,
the price 1kg of rice is 45rs therefore,
45*8=360
to find the cost of 6kg wheat,
20*6=120
hence, the price of 8kg rice is 360rs and the price of 6kg wheat is 120rs.