1. The distance between city A and city B on the map is 5 cm. With a map scale of 1: 1,200,000, the actual distance is ....
A. 4 km C. 40 km
B. 6 km D. 60 km
2. Within 7 minutes Deni was able to read a story of 140 words.
To read 700 words, the time required is ....
A. 20 minutes C. 35 minutes
B. 25 minutes D. 70 minutes
3. With an average speed of 90 km / h, a vehicle takes 3 hours 20 minutes. If the average speed of the vehicle is 80 km / h, the time required to cover this distance is ....
A. 3 hours 15 minutes C. 3 hours 45 minutes
B. 3 hours 40 minutes D. 3 hours 50 minutes
4. A trader buys 30 kg of rice at a price of Rp150,000. Then the rice is sold Rp.4,500.00 per kg.
The percentage of profit or loss is ....
A. 10% profit C. 10% loss
B. 15% profit D. 15% loss
5. By selling television for Rp.640,000.00, Arman lost 20%.
The purchase price of the television is ...
A. Rp900,000.00 C. Rp768,000.00
B. Rp.800,000.00 D. Rp.512,000.00
please use a method!
Answers
1. answer: D
* Discussion
True distance
= 1,200,000 × 5cm
= 6,000,000cm
= 60 km
2. * Answer: C
* Discussion
7 minutes → 140 words
y minutes → 700 words
Then: (7 / Y) = (140/700)
140y = 4900
y = 4900: 140
y = 35
The time required to read is 35 minutes.
3. * Answer: C
* Discussion
90 km → 200 minutes
80km → t minutes
Then: (90/80) X (t / 200) =
80t = 18,000
t = 18,000: 80
t = 225 minutes or 3 hours 45 minutes.
The time required is 3 hours 45 minutes.
4. * answer: C
* Discussion
Sales price = 30 × Rp4,500,00
= Rp. 135,000.00
Purchase price = Rp150,000.00
Because the sales price is smaller than the purchase, then he loses.
Loss = Rp150,000.00 - Rp135,000.00
= Rp. 15,000.00
The percentage of loss is (1500/15000) x 100 = 10%
5. * Answer: B
* Discussion
Purchase = 100%
Loss = 20%
Sales = 80% (Rp.640,000.00)
The purchase price is 100/80 x Rp640,000.00 = Rp800,000.00
This is the answer
Sorry if I'm wrong
I hope this helps✌