Explanation

Distance covered in 30 hours = 30x km

New speed = [x−15x​]km/hr=1514x​km/hr

Distance covered in 30 hours = 1514x​×30= 28x km Given,30x−28x=10km ⇒ x=5km/hr

Explanation

A bus covers a certain distance in 3 hours and 20 minutes at an average speed of 45km/h . How long will it take to cover the same distance of a speed of 36 km/h

Speed=TimeDistance

Speed=45km/hr

Time=331hrs=10/3hrs

Distance=Speed×Time

Distance=45×310

Distance=15×10

∴Distance=150km

Now Speed=36km/hr

Time=SpeedDistance=36150=4366=4hrs and 10mins

Explanation

4 boys ran 60km each in 6 hours,10km distance covered by 1 boy in 1 hour

Explanation

Explanation

Explanation

DICTIONARY = 10 letters × 2 = 20

MOBILITY = 8 letters × 2 = 16

TERMINATION = 11 letters × 2 = 22

Explanation

a : b :c

5  :6

    6  : 7

30:36:42

15:18:21

5:6:7

Explanation

Explanation

Let the total piece of land that he has be x hectares,

According to question, x/3 hectare land is used for strawberries, x/4 hectare for chesses, 3x/8 hectare for vegetables and 9 hectares for oats,

total land area= x

Therefore,

x = x/3 + x/4 + 3x/8 + 9,

taking x common,

1 = 1/3 + 1/4 + 3/8 + 9/x,

1 – (1/3 + 1/4 + 3/8) = 9/x,

1 – ((8 + 6 + 9)/24) = 9/x,

1 – (23/24) = 9/x,

1/24 = 9/x or x = 216 hectares

Explanation

C

ANS:

it is to note that in a fraction, the primary term of a proportion is called antecedent and the moment term is said to be consequent. Here the proportion is 5 : 13

The predecessor is 5 and the ensuing 13

antecedent is 33