Quiz- 1

Let Cost Price be x and selling price be y
Then given that cost price of 10 articles is equal to the selling price
of 9 articles
That means 10x=9y
Y= 10x/9
Profit percent = (( selling price – cost price )/cost price ) * 100
= 100/9 %

Given P = 468.75, T = 1 year 8 months = 1(8/12) = 5/3 years, A = 500.

We know that SI = PTR/100.

We know that A = SI + P

500 = (468.75 * 5/3 * R)/100 + 468.75

500 = 2343.75R/300 + 468.75

50000 = 3125R/4 + 46875

3125R/4 = 50000 - 46875

3125R/4 = 3125

3125R = 12500

R = 12500/3125

R = 4.

Therefore the rate of interest per annum is 4%.

 

Cp of first dal=30*36=1080
Cp of secomd kind dal=26*20=520
Total cp=1080+520=1600
Total amt of dal=30+26=56kg
Total sp of dal =30*56=1680
Profit =1680-1600 =80
Profit %=80 /1600 *100 =5%

where

P = principle

r = rates

t = time period in years

As given

sum of money become nine fold in 2 years

intial principle = P

after 2 years

compound interest = 9P

Put the values in the equation

200% = r

hence option 200%p.a is correct

Hence proved

 

Selling price = 40 – 10 = 30 Rupees.
Let cost price =x;
Selling price = cost price + profit on cost price
30 = x + 25% of x;
X= 24

(10/10)^2 =1% loss
1/100×2×9900=198rs loss

x be the marked price
x – 20% of x + 5% of sales tax + 5% of (x – 20% of x) = 2670
x=3000

profit %=p/cp *100
let cp = x
therefore, p%= Sp-x/x * 100

5x= 31500-100x
x=300=cp.

now, sp = 275
loss= cp-sp
loss= 300-275=25
loss%= loss/cp * 100
Loss%= 25/300 * 100 %
Loss%= 8.33%

33% loss
Let’s say cost price is x
Then selling price = (2/3)* x
Profit or loss % =( ( selling price – cost price )/ Cost price ) * 100

= 33% loss