Answer:

i. Percentage of bad apples =25 %

Percentage of good apples = 100%-25%=75%

ii. Let total no. of apples by p

75p/100=30

p =3000/75

p = 40

Therefore total no. of apples are 40 apples in basket

iii No of bad apples = total apples - good apples

=40 -30

=10apples

iv Ratio = good apples / bad apples = 30/10=3:1

Therefore 3:1 is the ratio

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Solution :-

1)

Given that

The amount borrowed from a bank by Sanju

(P) = Rs. 60000

Rate of interest (R) = 8 %

Time (T) = 2 years

We know that

Simple Interest (S.I) = PTR/100

On substituting these values in the above formula

=> S.I. = (60000×2×8)/100

=> S.I. = 600×2×8

=> S I. = 9600

The interest to be paid by Sanju = Rs. 9600

We know that

Amount = Principal + Amount

=> Amount = 60000+9600

Amount = Rs. 69600

Sanju has to pay the amount Rs. 69600

30)

Given that

Let number of good apples be X

The number of bad apples are mixed = 1

Total number of apples = X+1

Percentage of bad in the total apples = 25%

Percentage of good apples = 100-25 = 75%

Given that

Total number of good apples in the basket now = 30

=> 75% of (X+1) = 30

=> 75% ×(X+1) = 30

=> (75/100)×(X+1) = 30

=> (3/4)×(X+1) = 30

=> (3)(X+1)/4 = 30

=> (3X+3)/4 = 30

=> 3X+3 = 30×4

=> 3X+3 = 120

=> 3X = 120-3

=> 3X = 117

=> X = 117/3

=> X = 39

Number of good apples in the basket initially

= 39

total number of apples in the basket = 40

Number of bad apples in the basket now

= 25% of total apples

= (25/100)×40

= (1/4)×40

= 10

Good apples in the basket now = 30

Bad apples in the basket = 10

Ratio of the number of good apples to the number of bad apples = 30:10 = 3:1