Question
Four consecutive two-digit odd numbers add up to a total
that, when divided by 10, results in a perfect square. Which of the following options could be one of these four numbers?Solution
Maximum sum of the four numbers = 384 = 99 + 97 + 95 + 93 384/10 = 38.4 So, the perfect square is a number less than 38.4 The possibilities are 36, 25, 16 and 9 For the sum to be 360, the numbers can be 87, 89, 91 and 93 The sum of four consecutive odd numbers cannot be 250 For the sum to be 160, the numbers can be 37,39,41 and 43 The sum of 4 consecutive odd numbers cannot be 90 So, from the options, the answer is 41.
The major storage fungus contaminating food grains is:
To reduce exposure to uncertain crop yields and price volatility, a farmer often engages in:
Calculate the rotational intensity of rice-wheat crop rotation.
The bulk density is expressed as:
A. g/cmᶾ
B. Mg/mᶾ
C. kg/mᶾ
D. g/mᶾ
Choose the correct answer from the options given below:
Which of the following fruits is a rich source of vitamin C?
Which type of engine cooling system uses a fan to blow air directly over the engine block?
What is the characteristic symptom of Fusarium wilt in tomatoes?
Which cell organelle is a site of aerobic respiration?
In Kreb’s cycle, Acetyl Co-A combines with ______ to form citrate.
Which fruit crop suffers from a serious physiological disorder called ‘Albinism’?
