si- years/monthd
si-days
ci-annually
ci-partial
ci-finding the missing
100

What is the interest on BD8,400 invested for 6 years at 7% simple interest?


BD 3528

Si=8400 * 7%*6= BD 3528

100

Mr. Isa invested BD 3500 at 2.5% for 150 days. Find the trade simple interest rate and amount?

Si = BD 36.458 , A= 3536.458

si=3500*2.5%*150/360=36.458

a=3500+36.458=3536.458

100

Find the value of  (1.095)75?

90.377

100

Find the compound interest for BD10000 invested at 8% annually compounded three times for 3 years?

i=8/3=2.667%

n=3*3=9

=10000(1+2.667%)9

=10000(1.2673)

=12673


ci=12673-10000=2673

100

Hasan deposited an amount of money in a bank at 3% annually. If the compound amount at the end of 7 years is BD4919.495, calculate the principal?

p=4919.495 / (1+3%)7

=4919.495 / 1.22987

=4000

200

Nasser has a deposit account with the interest rate 3.3% in a bank.if he deposits BD 1,200 – how much will he have after 10 months?

SI= BD 33,P= BD 1233

si=1200*3.3%*(10/12)=33

A=1200+33=1233

200

Mr. Khaled invested BD 9000 at 5% for 250 days. Find the Exact simple interest rate and amount?

Si=BD 308.219, A=BD 9308.219

si=9000* 5%*250/365=308.219

a=9000+308.219=9308.219

200

Find the compound amount for BD 1500 invested for 5 years at 5% annually for  3 years ?

Ca= BD 1,736.437, Ci=236.437

200

Nasser wants to borrowBD70,000 from a bank to buy a new house, if you know that the interest rate is 12% annually compounded monthly. Find how much he paid to the bank at the end of 10 years?

i=12/12=1%   N=10*12=120

CA=70000(1+1%)120

=70000(3.3004)

=231028


ci=161028

200

Ali deposited an amount of money in a bank at 5% annually. If the compound interest at the end of 10 years is BD5231, calculate the principal?

P=5231/((1+5)10-1)

=5231/(1.62889-1)

=5231/0.62889

=8317.830

CA= 5231+8317.830

=13548.830

300

BD7,500 is deposited  at 12%  per year .find the balance after 2 years and 5 months.

Si= BD 2175, A= BD 9,675

si=7500*12%*(2+5/12)=2175

a=7500+2175=9675

300

Ahmed borrowed KD4,500 at 3% for 175 days, how much he will be paid at the end?

Si=KD 64.726, A= 4564.726

si=4500*3%*175/365=64.726

a=4500+64.726=4564.726

300

Find the number of periods for 8% annually compounded thirdly for 5 years?

=5*3=15 times

300

Ali deposited BD 2500 in a bank at 8% annually compounded semi-annually find his fund at the end of three years and 9 months, and find the compound interest ?

i=8/2=4%,n=(3+9/12)=3.75*2=7.5

=2500(1+4%)7.5

=2500(1.3420)

=3355


ci=3355-2500

=855


300

A principal of BD3000 invested at 4% annually, how long would it take to make the amount to BD 5639.084?

N=log ( 5639.084/3000) / log (1+4%)

N=log ( 1.8797) / log (1.04)

N=0.27408 / log 0.01703

N=15.8


400

If you want to invest BD1,000 at 4.5% form today until  next year, how much you will earn at the end?

Si= BD45, A= BD 1,045

si=1000*4.5%*1=45

a=1000+45=1045

400

Find the difference between the exact and the trade interest for BD 3301 at 3⅛% for 100 days ?

Trade Si= BD  28.645,A= BD  3329.645

Exact Si= BD 28.261,A= BD 3329.261

Difference=28.645-28.261 BD 0.384

400

If the annually rate is 9.5%, find the quarterly interest rate?

=9.5/4=2.375% quarterly

400

Find the compound amount for one unit monetary for 2 years at 12% annually compounded four times?

=1(1+4%)8=1.368

500

which type of interest is better and why for investing an amount of BD2500 by using exact and trade interest for 220 days at rate 6% annually? Trade is better because I will receive more money as interest :

Trade si= BD91.667,Exact si =BD90.410

"Trade" is better because I will receive more money as interest

500

If the partial interest rate is 4% compounded thirdly, find the annually rate?

=4*3=12% annually

500

On a child 9th birthday, his parents placed BD3700 in a bank under his name as an investment paying 8% annually compounded quarterly. How much money will he have on his 22nd birthday?

n=22-9=13*4=52

i=8/4=2%

CA=3700(1+2%)52

=3700(2.8003)

=10,361.111


ci=10361.111-3700

=6661.111