Advertisements
Advertisements
प्रश्न
Observe the following:
1 + 2 – 3 + 4 + 5 – 6 – 7 + 8 – 9 = –5
Change one ‘–’ sign as ‘+’ sign to get the sum 9.
Advertisements
उत्तर
On observing the given expression, 1 + 2 – 3 + 4 + 5 – 6 – 7 + 8 – 9 = –5, we noticed that (–7) should be replaced by (+7) to get a result of 9.
Thus, 1 + 2 – 3 + 4 + 5 – 6 + 7 + 8 – 9
= (1 + 2 + 4 + 5 + 7 + 8) – (3 + 6 + 9)
= 27 – 18
= 9
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Negative of 8 is_________
Fill in the blank:
If 10 represents gain of ₹ 10, then -10 represents_________
Fill in the blank:
Because 5 < 7, therefore -5_______-7.
Write the opposite of the following:
Failure
Write the opposite of the following:
Profit of Rs.10
Write the opposite of the following:
Rise in water level
Write the opposite of the following:
20 m below the danger mark of the river Brahmaputra
Sana and Fatima participated in an apple race. The race was conducted in 6 parts. In the first part, Sana won by 10 seconds. In the second part she lost by 1 minute, then won by 20 seconds in the third part and lost by 25 seconds in the fourth part, she lost by 37 seconds in the fifth part and won by 12 seconds in the last part. Who won the race finally?
Which is the coolest place?
Write four negative integers greater than – 20.
