Question
The speed of a bike increases by 3 km/hr after every 1
hour. If the distance travelled by the bike in 1st hour is 24 km, the find the total distance travelled by the bike in 10 hours.Solution
Since, the speed of the bike increases by 3 km/hr after every 1 hour, therefore the bike will travel 3 km extra after every 1 hour. Therefore, distance travelled by the bike in 1st hour = 24 km Distance travelled by the bike in 2nd hour = 24 + 3 = 27 km Distance travelled by the bike in 3rd hour = 27 + 3 = 30 km This form an AP i.e. 24, 27, 30………distance travelled in 16th hour Therefore, total distance travelled by the bike in 10 hours = sum of the AP Distance travelled in 10 hours = (n/2){2a + (n – 1)d} Where n = number of terms = 10, a = 1st term = 24 and d = common difference = 3 Therefore, distance travelled in 10 hours = (10/2){2 × 24 + (10 – 1) × 3} = (10/2)(48 + 27) = 375 km
If you …… enrol, then the details of the authorised signatory will not be added to the Network, which means those companies will not be,……….....
Select the most appropriate option to fill in the blank.
Work and domestic ______ made Kajal short-tempered.
She would ________ the thought of writing a 40-page research paper.
Proper draping helps manage the ______ of a saree.
Personal income tax collections are expected to _________ to a historic high of 2.3% of GDP in 2017-18, compared to 2% between 2013-14 and 2015-16.Â
They have to _____________ with elephants, hippos, bushpigs, porcupines, vervet monkeys, baboons and birds which are after their crops.    Â
...During the staff meeting there was a lot of ruckus since many didn’t ______ with the authorities. Â
Given below sentence with one blank. Below sentence are given four words among which one word might fill the blank. If none of the words fill the blank...
One Sunday afternoon, not ______ after I had _______ high school, I was sitting at home at our dining-room ______ doing homework. It was a cold and win...
I can still feel the surge of pride in earning my __________ money for the first time.
Relevant for Exams:
