Question : If the sum of 40% of a number and 30% of the same number is 70, then the number is:
Option 1: 200
Option 2: 100
Option 3: 150
Option 4: 125
Answer (1)
20th Jan, 2024
Correct Answer: 100
Solution :
Let's take the unknown number as $x$.
According to the question,
⇒ 0.4$x$ + 0.3$x$ = 70
⇒ 0.7$x$ = 70
⇒ $x$ = $\frac{70}{0.7}$ = 100
Hence, the correct answer is 100.
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