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Smart Math

Here’s and example of a SMART MATH problem for ARITHMETIC.

Problem

How many integer solutions exists for the equation $\left| y-\sqrt{(y+2)^{2}-9} \right|=5$?

1. 0
2. 1
3. 2
4. 3
5. 4

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

Mira rowed upstream in a stream flowing at the rate of 1.5 km/hr to a certain point and then rowed back stopping 2 kms short of the place where she originally started. If the rowing time was 2 hours 20 minutes and her uniform speed in still water was 4.5 km/hr, how far upstream did she go?

1. 4.25 kms
2. 5.33 kms
3. 6.50 kms
4. 7.00 kms
5. 8.75 kms

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

A monkey ascends a greased pole 21 meters high. In the first minute he ascends 5 meters and in the next minute descends 3 meters. If he continues this process, in how many minutes will he reach the top?

1. 17
2. 18
3. 25
4. 28
5. 30

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

A monkey climbs 30 meters of a pole during the day and slips down by 10 meters at night. Assuming that days and nights are equal, in how many days will the monkey scale a 120 meters high pole?

1. $5\frac{1}{3}$
2. $5\frac{2}{3}$
3. $6\frac{1}{3}$
4. $6\frac{2}{3}$
5. $7\frac{1}{2}$

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

A train speeds past a pole in 20 seconds and speeds past a platform 150 meters long in 60 seconds. What is the length of the train?

1. 75 meters
2. 100 meters
3. 150 meters
4. 200 meters
5. 250 meters

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

In a kilometer race B can give C a 100 meters and A 150 meters start. How many meters start can C give A?

1. 50
2. 49
3. 500/9
4. 8500/9
5. 50/9

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

A and B cycle from Mumbai to Pune, a distance of 192 kms at 18 km/hr and 14 km/hr respectively. A reaches Pune and starts back for Mumbai. How far from Pune will he meet B?

1. 12 kms
2. 16 kms
3. 24 kms
4. 42 kms
5. 60 kms

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

In a 200 meters race, A beats B by 20 meters, while in a 100 meters race B beats C by 5 meters. By how many meters will A beat C in a kilometer race assuming that speeds of A, B and C do not change in the races?

1. 150
2. 145
3. 130
4. 125
5. 110

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

If I walk to my office at 6 km/hr, I arrive 6 minutes early. If however, I walk at 4 km/hr, I arrive 4 minutes late. What is the distance that I walk to reach the office?

1. 2 kms
2. 2.5 kms
3. 3 kms
4. 4 kms
5. 6 kms

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Here’s and example of a SMART MATH problem for TIME SPEED DISTANCE.

Problem

A motorist travels to a place 100 kms away at an average speed of 50 km/hr and returns at 40 km/hr. The average speed of the journey is _________ km/hr?

1. 50.4
2. 48.4
3. 46.4
4. 45.4
5. 44.4

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