Since, the speed of the bike increases by 7 km/hr after every 1 hour, therefore the bike will travel 7 km extra after every 1 hour. Therefore, distance travelled by the bike in 1st hour = 10 km Distance travelled by the bike in 2nd hour = 10 + 7 = 17 km Distance travelled by the bike in 3rd hour = 17 + 7 = 24 km This form an AP i.e. 10, 17, 24………distance travelled in 14th hour Therefore, total distance travelled by the bike in 14 hours = sum of the AP Distance travelled in 14 hours = (n/2){2a + (n – 1)d} Where n = number of terms = 14, a = 1st term = 10 and d = common difference = 7 Therefore, distance travelled in 14 hours = (14/2){2 × 10 + (14 – 1) × 7} = (14/2)(20 + 91) = 777 km
When 1062, 1134 and 1182 are divided by the greatest number x, the remainder in each case is y. What is the value of (x – y) ?
The sum of two numbers is 18 while the sum of their squares is 164. Find the sum of the cubes of those two numbers.
If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
Find the remainder of (46)93+ (48)47/ 47 ?
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
If the first term is 125 and the common ratio is 3/5, then what will be the fourth term of the geometric progression (G.P)?
Find the average of first 25 whole numbers.
What is the average of first 34 multiples of 3.4?
The average marks scored by boys and girls in a class are 48 and 32, respectively. The total marks obtained by the entire class is 1680, with 40 student...
