Question

Shivam Bank has a chart to show us how many Indian rupees we can get when we change the money of different countries.

Country	Money	Changed into Indian Rupees
Korea Sri Lanka Nepal Hong Kong South Africa China U.A.E. U.S.A. Germany England	Won Rupee (SL) Rupee Dollar (HK) Rand Yuan Dirham Dollar Euro Pound	0.04 0.37 0.63 5.10 5.18 5.50 10.80 39.70 58.30 77.76

(This is the rate on 15-2-2008)

(A) The money of which country will cost the most in Indian Rupees?
(B) Mithun's uncle in America had sent him 10 USA dollars as a gift. Mithun used 350 rupees for a school trip. How much money was left with him?
(C) Majeed's father is working in Saudi Arabia. He gets 1000 Saudi Riyal as salary. Arun's father who is working in Sri Lanka gets 2000 Sri Lankan Rupees. Who gets more Indian rupees as salary?
(D) Leena's aunty brought a present for her from China. It cost 30 Yuan. Find what it costs in Indian rupees.
(E) Astha wants some Hong Kong Dollars and Won.
(1) How many Won can she change for Rs 4? For Rs 400?
(2) How many Hong Kong Dollars can she change for Rs 508?

Answer 1

(A) The money of England will cost the most in Indian Rupees as 1 pound is equal to Rs 77.76

(B) We find from the chart that,
1 US dollars = Rs 39.70
= 39 rupees 70 paise
= 39 × 100 paise + 70 paise
= 3900 paise + 70 paise
= 3970 paise

10 US dollars = 10 × 3970 paise
= 39700 paise
= Rs 397.00

So, Mithun got Rs 397.00 from his uncle as a gift.

Money spent on school trip by Mithun = Rs 350.00
So, money left with Mithun = Rs 397.00 − 350.00
= Rs 47.00

$\begin{array}{ccccccc}& 3& 9& 7& .& 0& 0\\ -& 3& 5& 0& .& 0& 0\\ & 0& 4& 7& .& 0& 0\\ & & & & & & \end{array}$

(C) Here, we are considering the exchange rates of Dirham in place of Saudi Riyal.
Salary of Majeed's father = 1000 Dirham

We find from the chart that,
1 Dirham = Rs10.80
= 10 rupees 80 paise
= 10 × 100 + 80 paise
= 1000 + 80 paise
= 1080 paise

So, 1000 Dirhams = 1000 × 1080 paise
= 1080000 paise
= Rs 10800

Therefore, salary of Majeed's father = Rs 10800.00

Salary of Arun's father = 2000 Sri Lankan Rupees
We find from the chart that,
1 Sri Lankan Rupee = Re 0.37
= 37 paise

So, 2000 Sri Lankan Rupees = 2000 × 37 paise
= 74000 paise
= Rs 740.00

Therefore, salary of Arun's father = Rs 740

Thus, Majeed's father gets more salary in Indian Rupees than Arun's father.

(D) Price of present bought by Leena's aunty = 30 Yuan

We find from the chart that,

1 Yuan = Rs 5.50
= 5 rupees 50 paise
= 5 ​× 100 + 50 paise
= 500 + 50 paise
= 550 paise

So, 30 Yuan = 30 ​× 550 paise
= 16500 paise
= Rs 165

So, the cost of the gift in Indian Rupees is Rs 165.00

(E)
(1) We find from the chart,

1 Won = Re 0.04
= 4 paise

We know that,
Re 1 = 100 paise
So, Rs 4 = 4 × 100 paise = 400 paise
Rs 400 = 400 × 100 paise = 40000 paise

Now, 4 paise = 1 Won
So, 400 paise = 400 ÷ 4 Won
= 100 Won

and 40000 paise = 40000 ​÷ 4 Won
= 10000 Won

Thus, Astha can change 100 Won for Rs 4, and 10000 Won for Rs 400.

(2) We find from the chart,

1 Hong Kong Dollar = Rs 5.10
= 5 rupees 10 paise
= 5 × 100 + 10 paise
= 500 + 10 paise
= 510 paise

Total money with Astha = Rs 508
= 508 × 100 paise = 50800 paise


50800 paise = 50490 + 310 paise

50800 paise = 510 × 99 + 310 paise

50800 paise = 510 HKD + 310 paise

Now, 310 paise = 300 paise + 10 paise
= 3 rupees and 10 paise
= Rs 3.10


Thus, Astha can change 99 HKD for Rs 508 and Rs 3.10 is left with her.