Answer:

Step-by-step explanation:

Answer:
2
Step-by-step explanation:
7.9-5.9= 2.0 the answer would be 2
Answer:
the answer is b
Step-by-step explanation:
Answer:
20 mangoes.
Step-by-step explanation:
Given:
Total number of mangoes, a trader bought = 
A trader bought at the rate of 4 mangoes for 10 naira.
Five of the mangoes were bad.
He sold the remaining at the rate of 5 mangoes for 20 naira.
He made a gain of 10 naira
Question asked:
Total number of mangoes, a trader bought =
= ?
Solution:
Unitary method
Cost price of 4 mangoes = 10 naira.
Cost price of 1 mango = 
Cost price of
mango = 
As 5 of the mangoes were bad and he sold the remaining mangoes, then Total number of mangoes sold = 
Sale price of 5 mangoes = 20 naira
Sale price of 1 mango = 
Sale price
of mango = 
Now, as we know,



Adding both sides by 20

Multiplying both sides by 2

Dividing both sides by 3

Therefore, total number of mangoes, a trader bought is 20.
1) D. 45
2)
<span>A.96
</span>1)
<span><span>(<span><span>3x</span>+4</span>)</span><span>(99)</span></span><span>=<span><span>(<span><span>3x</span>+4</span>)</span><span>(99)</span></span></span><span>=<span><span><span>(<span>3x</span>)</span><span>(99)</span></span>+<span><span>(4)</span><span>(99)</span></span></span></span><span>=<span><span>297x</span>+396</span></span>
2)116+83=96.