10 second questions

Jai Ganesh · 2011-09-07 00:22:12

Hi bobbym,

I am sorry I had not typed the period 3 years in the problem by oversight. Regretted!

The solution #3214 is Compound Interest = ($9261 - $8000) = $1261.

#3215. In what time would $1000 become $1331 at 10% per annum compounded annually?

bobbym · 2011-09-07 00:28:01

Hi ganesh;

Jai Ganesh · 2011-09-07 00:37:26

Hi bobbym,

The solution #3215 is perfect. Good work!

#3216. If $500 amounts to $583.20 in 2 years compounded annually, find the rate of interest per annum.

bobbym · 2011-09-07 00:45:46

Hi ganesh;

Jai Ganesh · 2011-09-07 00:54:48

Hi bobbym,

The solution #3216 is correct. Good work!

#3217.

of a tank holds 135 liters of water. What part of the tank is full if it contains 180 liters of water?

bobbym · 2011-09-07 00:59:51

Hi;

ShivamS · 2011-09-07 09:25:42

From #3197-#3216

Jai Ganesh · 2011-09-07 17:08:34

Hi,

The solution #3217 is correct. Well done, bobbym!

The solutions #3197 to #3216 are all correct. Outstanding, Shivamcoder3013!

#3218. The speed of a boat in still water is 15 km/hour and the rate of current is 3 km/hour. Find the distance travelled downstream in 12 minutes.

#3219. A man can row at 5 km/hour in still water. If the velocity of the current is 1 km/hour and it takes him 1 hour to row to a place and come back, how far is the place?

bobbym · 2011-09-07 18:04:41

Hi ganesh;

Jai Ganesh · 2011-09-08 00:14:50

Hi bobbym,

The solution #3219 is perfect. Excellent!

#3220. A boat takes 19 hours for traveling downstream from point A to point B and coming back to a point C midway between A and B. If the velocity of the stream is 4 km/hour and the speed of the boat in still water is 14 km/hour, what is the distance between A and B?

bobbym · 2011-09-08 00:32:29

Hi ganesh;

Jai Ganesh · 2011-09-08 00:48:17

Hi bobbym,

The solution #3220 is correct. Well done!

#3221. Alfred started a business investing $45,000. After 3 months, Peter joined him with a capital of $60,000. After another 6 months, Ronald joined them with a capital of $90,000. At the end of the year, they made a profit of $16,500. Find the share of Alfred, Peter, and Ronald.

bobbym · 2011-09-08 01:02:39

Hi ganesh;

Jai Ganesh · 2011-09-08 01:38:47

Hi bobbym,

The solution #3221 is perfect. Neat job!

#3222. If the height of a triangle is dereased by 40% and its base is increased by 40%, what would be the effect on area?

anonimnystefy · 2011-09-08 01:41:36

hi ganesh

bobbym · 2011-09-08 01:44:32

Hi ganesh;

Jai Ganesh · 2011-09-08 17:06:51

Hi anonimnystefy and bobbym,

The solution #3222 (decrease by 16%) is correct. Well done, anonimnystefy!

#3223. Find the area of a square, one of whose diagonals is 3.8 meter long.

#3224. The diagonals of two squares are in the ratio 2:5. Find the ratio of their areas.

bobbym · 2011-09-08 20:32:39

Hi;

Jai Ganesh · 2011-09-08 22:42:51

Hi bobbym,

The solution #3223 is correct. Well done!

#3225. The base of a triangular field is three times its altitude. If the cost of cultivating the field at $24.68 per hetare be $333.18, find its base and height.

bobbym · 2011-09-08 23:05:11

Hi ganesh;

Jai Ganesh · 2011-09-09 00:10:20

Hi bobbym,

#3226. Find the cost of carpeting a room 13 meter long and 9 meter broad with a carpet 75 cm wide at the rate of $12.40 per square meter.

bobbym · 2011-09-09 00:25:23

Hi;

Jai Ganesh · 2011-09-09 00:49:59

Hi bobbym,

#3227. P and Q started a business investing $85,000 and $15,000 respectively. In what ratio the profit earned after 2 years be divided between P and Q respectively?

bobbym · 2011-09-09 00:56:55

Hi;

Jai Ganesh · 2011-09-09 15:58:00

Hi bobbym,

The solution #3227 is correct. Well done!

#3228. A, B, and C start a business each investing $20,000. After 5 months, A withdrew $5,000, B withdrew $4,000 and C invests $6,000 more. At the end of the year, a total profit of $69,900 was earned. Find the share of each.

#3229. A, B, and C enter into partnership. A invests 3 times as much as B invests and B invests two-third of what C invests. At the end of the year, the profit earned is $6,600. What is the share of B?

Math Is Fun Forum

#3101 2011-09-07 00:22:12

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#3102 2011-09-07 00:28:01

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