Question

.Answerthefollowing:-. 2×3=6
1.Convertthefollowingratiostopercentages.
(a)1:4. (b)2:5
2.Sohan bought the refrigerator for 2500 rupees, then spent 500 rupees on its repairs and sold it for 3300
rupees. Find his profit or loss percent.
3.72% of 25 students are interested in mathematics. How many are not interested in mathematics?
II.Do as directed:-
1.A man got a 10% increase in his salary. If his new salary is 1,54,000rupees.Find his original salary.
2.On Sunday 845 people went to the zoo. On Monday only
169 people went. What is the percent decrease in
the people visiting the zoo on Monday?
3.Find CIon 12600rupees for 2years at 10%perannum compounded annually

Answer 1

Answer:

Step-by-step explanation:

Cost prize of refrigerator =2500+500 = Rs.3000

Selling prize = Rs.3300

Gain =S.P.−C.P.=3300−3000=300

Therefore, Gain percent =  

C.P.

gain×100

​  

 =  

3000

300×100

​  

 = 10%