a debt od 500000 due in 10years with tge interest of 3% compounded semi- annually is to be settled 3 equal payment at the end of 3 years,6 years and 9 years. What is size of each payment if money is worthy 6% compounded monthly?
Answers
Answer:
Ncert solutions
Grade 7
Mathematics
Science
Chapters in NCERT Solutions - Mathematics, Class 7
Exercises in Integers
Question 8
Q8) A cement company earns a profit of Rs 8 per bag of white cement sold and a loss of Rs 5 per bag of grey cement sold.
(a) The company sells 3,000 bags of white cement and 5,000 bags of grey cement in a month. What is its profit or loss?
(b) What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags.
Solution 8:
(a)
Profit gained by 1 bag of white cement = Rs 8
Loss of 1 bag of grey cement = Rs 5
(i) Profit from selling 3000 white cement bags = Rs 3000\times8\ =\ 240003000×8 = 24000
(ii) Loss from selling 5000 grey cement bags = Rs 5000\times5=\ 250005000×5= 25000
since 24000<2500024000<25000
profit\ <\ loss\profit < loss
Therefore, his total loss on selling the grey cement bags = loss\ -\ profit\loss − profit
25000-24000\ =\ 100025000−24000 = 1000
Thus, company has lost of Rs 1000 on selling the grey cement bags.
(b)
Let the no. of white cement bags be 'x'
According to the question
Loss = Profit
Therefore, 5\times6400\ =\ x\ \times85×6400 = x ×8
\frac{5\times6400}{8}=\ x
8
5×6400
= x
x=\ 4000x= 4000