Explanation:

ঢাকায় দীর্ঘতম ফ্লাইওভার কোনটি? সঠিক উত্তর যাত্রাবাড়ি যাত্রাবাড়ি উড়ালপুল বা মেয়র মোহম্মদ হানিফ উড়ালপুল  হলো ঢাকার দক্ষিণ অঞ্চলের একটি উড়ালপুল। এটি ঢাকা-চট্টগ্রাম মহাসড়োকের সঙ্গে ঢাকাকে যুক্ত করেছে। এটি বাংলাদেশ এর দীর্ঘতম ফ্লাইওভার। এর দৈর্ঘ্য ১০.৬ কিমি। মূল ফ্লাইওভারটির দৈর্ঘ্য ৪.১ কিমি ও সংযোগকারী সড়কের দৈর্ঘ্য ৬.২ কিমি। এটি ঢাকার চানখা'রপুল থেকে শুরু করে যাত্রাবাড়িতে শেষ হয়েছে। ফ্লাইওভারটি চার লেনের এবং সংযোগকারী সড়ক গুলি ২ লেনের। এই ফ্লাইওভার গুলিস্তান ও যাত্রাবাড়ির মধ্যে যানজট কমিয়েছে।

Explanation:

A dog takes 4 leaps for every 5 leaps of hare and 3 leaps of the dog is equal to 4 leaps of a cat. Compare the speed of the hare and the cat. Correct Answer 16:15 Let the distance covered by dog in 1 leap is x and hare covered 1 leap is y. then, 3x = 4y => x =(4/3) y => 4x =(16/3) y Then, The ratio of speeds of dog and hare = Ratio of distances covered by them in the same time = 4x : 5y = (16/3)y : 5y =(16/3) : 5 = 16:15 Ans=16:15

Explanation:

If a positive integer n, divided by 5 has a remainder 2, Which of the following must be true? I. n is odd II. n + 1 cannot be a prime number III. (n + 2) divided by 7 has remainder 2 Correct Answer none By adding 2 to all multiples of 5, you can identify the integers that have a remainder of 2 when multiplied by 5. Thus, n = 7, 12, 17, 22, etc. This series demonstrates that n does not necessarily have to be odd. Because, for instance, 12 + 1 = 13, n + 1 can also be a prime. Additionally, (n + 2)/7 occasionally yields a remainder of 2, but not always. It's important to keep in mind that the question asks us to consider what MUST be true, and we can see that none of the statements are true in every situation. However, any number of n will always result in a multiple of 5 when 3 is added

Explanation:

The perimeter of a square is 56, the length of each side is? Correct Answer 14 A square has four equal sides, so to find the length of each side of the square, we can start by dividing the perimeter by 4.Perimeter of the square = 56Length of each side = Perimeter / 4Length of each side = 56 / 4Length of each side = 14Therefore, the length of each side of the square is 14

Explanation:

When you reverse the digits of the number 13, the number increases by 18. How many other two-digit numbers increase by 18 when their digits are reversed? Correct Answer 6 Let 10x + y be a two digit number, where x and y are positive single digit integers and x>0.Its reverse = 10y + xNow, 10y + x - 10x - y = 18∴ 9(y - x) = 18 ∴ y - x = 2Thus y and x can be (1, 3), (2, 4), (3, 5), (4, 6), (5, 7), (6, 8) and (7, 9)∴ Other than 13, there are 6 such numbers.

Explanation:

Aniruddha's salary increases at the rate of 10% per month. If his initial salary is Tk. 1,000, what will his salary amount to after 3 increments? Correct Answer Tk.1,331 Aniruddha's salary increases at the rate of 10% per month, which means his salary after each increment will be 110% of his previous salary.After 1st increment, his salary will be: 1,000 + (10% of 1,000) = 1,100After 2nd increment, his salary will be: 1,100 + (10% of 1,100) = 1,210After 3rd increment, his salary will be: 1,210 + (10% of 1,210) = 1,331Therefore, Aniruddha's salary will amount to Tk. 1,331 after 3 increments

Explanation:

A reduction of 15% in the price of a shirt resulted in the reduction of the price of the shirt by Tk 21. What was the previous price of the shirt? Correct Answer Tk. 140 Let the previous price of the shirt be x.According to the problem, the price of the shirt was reduced by 15%, which can be written mathematically as:x - 0.15x = 0.85xAlso, it is given that the reduction in the price of the shirt was Tk 21. So we can write:0.85x = x - 21Simplifying this equation, we get:0.15x = 21Dividing both sides by 0.15, we get:x = 140Therefore, the previous price of the shirt was Tk 140