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प्रश्न
A man bought some pencils for Rs 30 and some pens for Rs 90. The next day, he again bought some pencils for Rs 25. Then, he sold all the pencils for Rs 20 and the pens for Rs 70. What was his net gain or loss?
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उत्तर
Total cost price = Price of pencils + Price of pens
= 30 + 90 + 25
= Rs 145
Total amount sold = Price of pen + Price of pencils
= 20 + 70
= 90
Selling price - costing price = 90 - 145
= -55
The negative sign implies loss.
Hence, his net loss was Rs 55.
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संबंधित प्रश्न
A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step.
1) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level?
2) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?
3) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following; (a) − 3 + 2 − … = − 8 (b) 4 − 2 + … = 8. In (a) the sum (− 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?
Indicate the following using '+' or '−' sign: A gain of Rs 600
Fill in the blanks:
(−9) + 16 = .......
Divide: 0 by –278
Fill in the blanks:
(......) ÷ 372 = 0
Write (T) for true and (F) for false for the following statement:
15 ÷ (−1) = −15
Fill in the blanks.
The smallest positive integer is ...... .
Number of integers lying between –1 and 1 is ______.
The sum of any two negative integers is always greater than both the integers.
The sum of three different integers can never be zero.
