Question
How many pages are there in the book? I.
Lesson 8 and 9 take only 20 pages and at least five lessons take 13 pages each. II. There are 14 lessons in the book. Lesson no. 6 takes 14 pages while six other lessons take 12 pages each. Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer –Solution
From both I and II, 8 and 9 lessons take 20 pages. Lesson 6 takes 14 pages. “Lesson 8 and 9 take only 20 pages and at least five lessons take 13 pages each.” ∴ 6 × 12 = 72 Total no. of lessons = 14 ∴ Remaining lessons = 14 – 9 = 5 Remaining pages = 5 × 13 = 65 ∴ Total no. of pages = 20 + 14 + 72 + 65 = 171. Hence both I and II are sufficient to answer the question.
- A Man sold 2 articles for ₹4,000 each, gained 10% on one and lost 20% on the other. What is the total gain or loss rounded to the nearest integer? 
- A trader buys 150 kg of rice at ₹20 per kg and 100 kg of rice at ₹25 per kg. He mixes them and sells the mixture at ₹27 per kg. What is his overal... 
- A retailer sells two items, K and L. He gains a 12% profit on item K, which costs Rs. 3600. If the overall profit from selling both items is 15%, what i... 
- Mohini went shopping to buy a shirt with some money. She selected a shirt, which is marked Rs.200 higher price than the money she had. But shopkeeper g... 
- The wheel of an engine 5 (1/9) meters in circumference makes five revolutions in 4 seconds. Find the speed of the train in km per hour. 
- An item was marked 60% above its cost price and sold after giving a discount of Rs. 600. If the selling price of the item is Rs. 1800, find the cost pri... 
- A & B jointly made a profit of Rs.1650 and they decided to share it such that 1/3 of A's profit is equal to 2/5 of B's profit. Then profit of B is 
- A shopkeeper sold a school bag at a profit of 45%. Had he sold the school bag at 25% profit he would have earned Rs.148 less. Find the cost price of the... 
- A shopkeeper sold a school bag at a profit of 55%. Had he sold the school bag at 35% profit he would have earned Rs.188 less. Find the cost price of the... 
- Kailash went to purchase a chimney, the shopkeeper told him to pay 26% tax if he asked the bill. Kailash manages to get the discount of 12% on the actu...