By selling a drone for N690, a profit of 15% was made. What was the cost price of the drone?

N688.97

Step-by-step explanation:

Percentage profit = [Selling price - Cost price/Cost price ]× 100

Percentage profit = 15%

Cost price = x = ??

Selling price = N690

Hence:

15% = (690 - x /x)× 100

0.15 = 100(690 - x)/x

Cross Multiply

0.15x = 69000 - 100x

Collect like terms

0.15x + 100x = 69000

100.15x = 69000

x = 69000/100.15

x = 688.96655017.

Approximately = 688.97

Therefore, the Cost price of the drone = x = N688.97

c is the correct answer

step-by-step explanation:

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.