the first right answer I will mark as brainlist.
a sum of money lent at simple interest amounts to 4745 in 3 years and to 5475in 5 years. find the sum and rate percent per annum.
Answers
Step-by-step explanation:
Formula for simple interest : SI = P x r x n
where P = principle amount
r = rate of interest
n = number of year
In 3 years, the total money = P + SI = P + P x r x n = P ( 1+3r)
Given, P(1+3r) =4745 -- equation#1
similarly, in 5 years , P(1+5r) = 5745 -- equation#2
Divide equation#1 and 2 ,


1149 + 3447 r = 949 + 4745 r
1298r = 200
r = 0.15 i.e rate of interest is 15%
Substitute this value in equation#1
P ( 1+0.45) = 4745
P = 3272.41 is the principle amount.
Step-by-step explanation:
craftsperson and a well-equipped workshop. They will require one specialist tool to complete the project, costing £4.00. The craftsperson will charge £40 per hour and each lamp will take 4 hours to make.
Company B is a medium-sized business with 20 semi-skilled workers. The cost of the set up for the manufacture of the lamp is £100 and the workers need to be paid £7.50 each per hour. Five laborers can make a lamp in 2 hours.
Question-->Retailer needs 50 lamps. how much will it cost to make them from company A and Company B
Question--->State which company would offer better value for money and explain how the reduced cost per unit could be achieved.
(a)Explain two factors, other than cost, that might affect a retailer’s decision