Answer: D) CD's Explanation: CDs are the least risky investment choice when compared to flipping, renting and bonds. A certificate of deposit (CD) is a savings certificate with a fixed maturity date, specified fixed interest rate and can be issued in any denomination aside from minimum investment requirements. A CD restricts access to the funds until the maturity date of the investment. CDs are generally issued by commercial banks. CDs are issued by the bank and are guaranteed by the government. So even if the bank goes bankrupt the investor's money is guaranteed to a certain extent. Flipping and renting are subjected to market fluctuations while bonds are not insured.

Answer: C) 27.77 Explanation: If the price of the oranges decreases by 10%, the woman would save 10% of the money that is Rs.50 to buy the same amount as before.Now in Rs. 50 she can buy 2 kg more, therefore the current price of 1 kg of oranges is Rs25.Now, this current price is after 10% reduction.       Therefore, the original price =  25/0.9  = Rs. 27.77

Answer: A) 4 स्पष्टीकरण: यह देखते हुए कि, खिड़कियों की संख्या = 50 प्रत्येक खिड़की को कवर करने वाली 15 खिड़कियां => 50 खिड़कियों के लिए 50/15 विंडो कवरिंग की आवश्यकता होती है = 50/15 = 3.333 इसलिए, 3 से अधिक विंडो कवरिंग की आवश्यकता होती है। विकल्पों में 4, 3 से अधिक है। इसलिए, प्रत्येक कवरिंग की 50 खिड़कियों को कवर करने के लिए 4 विंडो कवरिंग की आवश्यकता होती है, 15 विंडो को कवर करता है।