Question

Pls solve these:
1.Cost of a bottle is Rs.80. It was sold at a profit of 10%. Find the selling price?
2.Find the gain percentage if a door curtain costs Rs.250 was sold for Rs.300 ?
3.If Rs.6000 is borrowed at simple interest of 8% per annum. Find the interest at the end of 3 years?
4.Swathy earns an interest of Rs.750 for Rs.15000 in 1 year . Find the rate of interest?
5.Find the cost price of an item if it was sold at Rs.630 with a loss of 10%?
6.If 7.5 metres of a rod weighs 187.5 kg, find the weight of 60 metres of rod?

Answer 1

Answer:

1-rs88

2-20%

3-rs1440

4-5%

5-rs693

6-1500kg

Answer 2

Step-by-step explanation:

1) cp=80 rs,p%=10% =p/80

p=8rs, now sp=10-8=2rs ,

answer is 2 rs

2) cp=300,sp=250,p=cp-sp=300-250=50rs,p%=p/cp =50/300 x 100

answer is 16.6%

3)si=prt/100,si=6000x8x3=144000/100

answer is 1440 rs

5)sp=630,l%=10,  l%=sp-cp/cp,10/100=630-cp/cp= by cross multiplication we get572.2 rs cp is 572 approx.

6)7.5m=187.5kg,60m=?kg first we will find the weight of 1 m rod = 25kg

now the weight of 60 m rod is 60x25=3600kg

thank you, plz give thanks if u find it usefull