Explanation

Let the cost price of the dog be Rs. X

∴ the cost price of the cat = Rs. (6500 – X)

The man sold the dog at a gain of 20%

∴ Gain in selling the dog = 20% of X = 0.2X

Also, the man sold the cat at a loss of 10%

∴ loss in selling the cat = 10% of (6500 – X) = 0.1 × (6500 – X) = 650 – 0.1X

He gained 2% in the overall.

∴ Gain in overall transaction = 2% of 6500 = 130

∴ 130 = 0.2X – (650 – 0.1X)

0.3X = 130 + 650 = 780

X = 780/0.3 = 2600

Explanation

Let: B= x   and A= 2x

(A+B) 18 days work = 1 

(A + B) one day work= 1/18

So:

x + 2x =1/18

⇒     x =  1/54 

So A=27 and B= 54

Explanation

Step 1: Recall the definition of set difference

The set difference A - B is the set of elements that are in A but not in B.

Step 2: Calculate A - A

A = {1,2,3,4}

A - A = {} (since every element in A is also in A, the difference is the empty set)

Explanation

Explanation

There are 60 minutes in one hour.

So 5 hours equals 300 minutes (5 x 60 = 300).

Explanation

2000 ÷ 4 = 500

Explanation

Factors of 18 and 24:

Factors of 18 = 1, 2, 3, 6, 9, 18

Factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24

Therefore, the HCF of 18 and 24 is 6.

Explanation

Find the value of "a"

a + 4 = 10 

a = 10 - 4 

a = 6 

__

Find the value of "b"

b + 10 = 4 

b = 4 - 10 

b = - 6 

find :

a + b = 6 + ( - 6)

= 6 - 6 

= 0

Explanation

ایک لیٹر میں کتنا کرتی ہے

150/20 = 7.5

 تین سو بیس لیٹر میں کتنا کرے گی

320/7.5 = 42.67

Explanation

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