Mathematics Therapy

MORE EXAMPLES ON RATIO
Example 3:
Wole, Chima and Bako agreed to share profits ( or losses) in the ratio of 4:3:6. Divide their profit of N 78,000 among them.

SOLUTION
The ratio 4:3:6 indicates that the profit will be shared into 4+3+6= 13 shares. Wole will receive 4 of the 13 shares , Chima will receive 3 of the 13 shares while Bako will receive 6 of the 13 shares.
Wole receives 4/13 of the profit = 4
---× N78, 000
13
= N24,000

Chima receives 3/13 of the profit = 3
----× N 78, 000
13
= N18, 000

Bako receives 6/13 of the profit = 6
---× N 78, 000
13
= N 36, 000.

RATIO
Example 1:
(a) The ratio of the cost price to
the selling price of an
article is 4:5. If the article
cost N200, find the selling
Price.
(b) The ratio of the cost price
to the selling price of an
article is 2:3. If the article
was sold N 600, what was
the cost price.

SOLUTION
(a) Ratio of cost price to the selling price is 4:5.
That is , the selling price is 5
----
4
of the cost price
5 5
---- of N 200 = --- × N200
4 4

= N250

(b) The ratio of cost price to selling price is 2:3
That is , the cost price is 2
--- of
3
the selling price.

2 2
-- of N600 = ----- × N600
3 3

= N400.