Instructions

For the following questions answer them individually

Question 61

In a triangle ABC, DE is parallel to BC; AD = a, DB = a + 4, AE = 2a + 3, EC = 7a. What is the value of 'aâ€™ if a>0 ?

Question 62

The following table gives the details of Five commodities A, B, C, D and E with quantity required and their costs for a family in a month. Study the table and answer the questions that follow.

The amount spent extra on commodities B and C in the year 2019 as compared to that in the year 2016,is:

Question 63

A, B and C can individually complete a task in 20 days, 16 days and 30 days, respectively. If A and B started working on the task, and they worked for 4 days and left, then the number of days required by C to finish the remaining task is:

Question 64

A train crosses a platform 180 m long in 60 sec at a speed of 72 km/h. The time taken by the train to cross an electric pole is:

Question 65

The rate of simple interest on a sum of money is 5% p.a. for the first 4 years, 8% p.a. for the next 3 years and 10% p.a. for the period beyond 7 years. If the simple interest accrued by the sum over a period of 10 years is â‚¹1,850, then the sum is:

Question 67

The average of 60 studentâ€™s results is 38. If the average of the first 22 students is 36, and that of the last 32 students is 32, then the average result of the remaining students is:

Question 68

The inner and outer radius of a circular track are 23 m and 29 mÂ respectively. The cost of leveling the track at â‚¹Â 7/m$$^{2}$$ is :

Question 70

A shopkeeper fixes the price of an article in such a way that after allowing 32% discount, he wants again of 14%. If theÂ marked price is â‚¹342, then the cost price of the article is:

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