If the present price of cycle is Rs. 1,210 , its price two years ago was ?
a) 1,000
b) 2,100
c) 1,700
d) 1,900
2007-07-01 21:37:11 · 6 answers · asked by shakthi 1 in Science & Mathematics ➔ Mathematics
Price 2 yrs ago is Rs. 1000...( Using the compound interest formula )
2007-07-01 21:41:33 · answer #1 · answered by yahooo 2 · 2⤊ 0⤋
The price 2 years ago:
1000
next year:
1000+(10%*1000)=1000+100=1100
now:
1100+(10%*1100)=1100+110=1210
2007-07-02 05:09:31 · answer #2 · answered by Arfianto M 2 · 0⤊ 0⤋
You can give a good guess even without calculating it:
1,000 is the only answer to chose from which is lower than today's price. If the bike gets more expensive each year it must have been cheaper two years ago.
2007-07-02 06:25:02 · answer #3 · answered by Martin S 7 · 0⤊ 0⤋
T(2) = Price after 2 years
T(0) = Initial price.
r = 1.1 (with 10% increment every year)
T(n) = T(0) r ^n
T(2) = T(0) (1.1) ^2
T(0) = 1210/1.21 = 1000.
The ans is (a)
2007-07-02 04:53:19 · answer #4 · answered by cllau74 4 · 0⤊ 1⤋
1,210 / (1.1) / (1.1)
1,100 / 1.1
1,000
Answer is a.
2007-07-06 02:42:52 · answer #5 · answered by Jun Agruda 7 · 2⤊ 0⤋
well I am going with a, 1,000.
2007-07-02 04:46:14 · answer #6 · answered by DEGENERES77UAL IS BI AND PROUD!! 2 · 0⤊ 1⤋