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Answers
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