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If in a faulty odometer, the digit 4 doesn’t come up and my device shows 2532 kms, how many kms have i actually travelled?
If in a faulty odometer, the digit 4 doesn’t come up and my device shows 2532 kms, how many kms have i actually travelled?
can anyone share approch and method to solve such questions
A certain sum become thrice times itself at simple interest in 6 years .it will become 8 times in — — — years Shortcut solution require
A certain sum yield ₹840 more interest if it is invested at 18% pa than at 12% pa for the two years .. then the sum is ? Explain please
A sum become 7/5 times itself in three years at simple interest .find rate of interest and sum Explain
How to solve this?
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If Si and ci on certain sum for two years are given Then how toh find r % and p ??
Q 31 plz
How can we infer this ans 75 line 1(number system)
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Approach pls
Four runners take turn to run around a quadilateral(all sides are unequal) race course such that one runner runs across one side only. They run with speeds of 'a' m/s, 'b' m/s, 'c' m/s,'d' m/s, though not necessarily in that order. The values of a, b, c and d are four consecutive numbers such that only one number among a, b, c and d is composite number and they took minimum possible time(integer) . find minimum possible perimeter of quadilateral
Approach plz
After travelling 30 min, a train met with an accident and was stopped there for 45 min. Due to the accident, its speed reduced to (2/3)rd of its initial speed and the train reached its destination 90 min late. Had the accident occurred 60 km after the point it occurred earlier, the train would have reached 30 min earlier. Find the length of the journey. ( Please explain the approach as well)
- 90km
- 120km
- 180km
- 60km
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Two trains start simultaneously from A and B towards B and A respectively at 8 a.m. They cross each other at 12 noon. Train starting from B, thereafter, takes 6 hrs to reach A. On a particular day the train starting from A, reduced its speed and arrived at B, 200 min late. At what time did the trains cross each other on that day? (Please explain the approach as well)
- 2pm
- 2;30pm
- 1pm
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A starts from home for his office. He travels downhill, then on flat ground and then uphill to reach his office. During this, the time taken to travel uphill and on flat ground is the same. It takes him 3 hrs to reach the office. On the way back home A takes 3 hrs 10 min to reach home along the same route. The speeds downhill is 60 km/hr, on flat ground is 48 km/hr and uphill is 40 km/hr.
By what distance should his office be shifted so that the time taken to go to the office is same as time taken to reach home from the office?
(Please explain the approach as well)
- 20km
- 30km
- 40km
- 35km
0 voters
A swimmer jumps from a bridge over a canal and swims 1 km upstream. After that first kilometer, he passes a floating cork. He continues swimming for another half an hour and then turns around and swims back to the bridge. The swimmer and the cork arrive at the bridge at the same time. The swimmer has been swimming with constant speed. How fast does the water in the canal flow?
(Please explain the approach as well)
- 1km/hr
- 2km/hr
- 3km/hr
- 4.5km/hr
0 voters